Correspondence to or from:

• Killick, Rowena, London, England. (1933)
• Kilvert, Margaret Cameron, New York, N.Y. (1930-1937)
• Kimball, Fred L. Co., Waterloo, Iowa. (1923)
• Kirkland, Winifred, New York, N.Y. (1932)
• Kiwanis Magazine, Chicago, Ill. (1926)
• Kleine, George, New York, N.Y. (1916)
• Knapp, Martin, New York, N.Y. (1923)
• Knowlson, James S., Ninsdale, Ill. (1936)
• Kochenderfer, Nancy Ann, [?] (1935)
• Kroger Grocery & Baking Co., Cincinnati, Ohio. (1930-1932)
• Krosier Missionary, Onamia, Minn. (1932)
• Kyne, Peter B., New York, N.Y. (1926-1933)

Correspondence to or from:

• Ladies Home Economics, Kansas City, Kan. (1929)
• Lafave, Arthur J., Cleveland, Ohio. (1937)
• Lafayette-South Side Bank & Trust Co., St. Louis, Mo. (1929)
• Laird & Lee, Chicago, Ill. (1914-1930)
• Lake Publishing Company, Baltimore, Md. (1910)
• Lamb, A Magazine of Fun and Finance, New York, N.Y. (1916)
• Lamb Publishing Company, New York, N.Y. (1916-1917)
• Lambert Publishing Company, Chicago, Ill. (1925)
• The Lamp, Peekskill, N.Y. (1926-1939)
• Landau, Jane, Chicago, Ill. (1929)
• Lane, Jeremy, New York, N.Y. (1922)
• Lane, R.E., Oak Park, Ill. (1930)
• La Patrie, Montreal, Que. (1933-1934)
• Lares and Penates, Philadelphia, Pa. (1924)
• Larrimore, Lida, Devon, Pa. (1932)
• La Salette, Altamont, N.Y. (1938)
• Lasalle Extension University, Chicago, Ill. (1927)
• Lathrop, G.A., Gunnison, Colo. (1937)
• Lauderdale Lakes Improvement Association, Chicago, Ill. (1919)
• Lauffer, Berthold, Chicago, Ill. (1933)
• Laughter, Philadelphia, Pa. (1926)
• Laurentian Publishers, Chicago, Ill. (1914)
• Lavenson, Jay, Philadelphia, Pa. (1930)
• Lea, Constance N., West Hill, Ont. (1934)
• Lea, Fannie Heaslip, New York, N.Y. (1930)
• Lean, George A., Elkhorn, Wis. (1936)
• Leather Progress, New York, N.Y. (1928)
• Leblanc, Esthele, St. Hyacinth, Que. (1934)
• Lee, Helen A., Cambridge, Wis. (1934-1935)
• Lee, Jennette, Northampton, Mass. (1936-1937)
• Lee, Reuel P., Minneapolis, Minn. (1933)
• Lefax Incorporated, Philadelphia, Pa. (1927)
• Le Gallienne, Richard, Menton, France. (1936)
• Lehner, Adolph P., Oconto Falls, Wis. (1929)
• Leicht, Dorothy, Winona, Minn. (1933-1935)
• Leichton, W.R., Fayetteville, Ark. (1916)
• Leighton Industries Inc., San Francisco, Calif. (1927-1928)
• Lenart, Elta, Chicago, Ill. (1928)
• Lenhart, Ralph L., York, Pa. (1930)
• Lenniger, August, New York, N.Y. (1934-1935)
• Lescarboura, Austin C., New York, N.Y. (1928)
• Leuin, M.L. & Company, Pittsburgh, Pa. (1934)
• Levant Literary Agency, Jerusalem. (1936)
• Levy, Robert, New York, N.Y. (1937)
• Leward, Elsie Singmaster, Gettysburg, Pa. (1931-1934)
• Lewis, E. St. Elmo, Detroit, Mich. (1931)
• Lewis, James Hamilton, Washington, D.C. (1933)
• Lewis, Margaret Cameron, New York, N.Y. (1920-1930)
• Lewis, Tracy H., New York, N.Y. (1926)
• Lewis, William Eugene, New York, N.Y. (1926)
• Lewis Publishing Company, St. Louis, Mo. (1909-1910)

Correspondence to or from:

• Libertarian, Greenville, N.C. (1925-1930)
• Library Clearninghouse, Chicago, Ill. (1913)
• Library Journal, New York, N.Y. (1935)
• Life and Health, Washington, D.C. (1932)
• Life Association News, New York, N.Y. (1927)
• Light and Life Sunday School Publications, Chicago, Ill. (1932)
• Lighting, Inc., Chicago, Ill. (1929)
• Lighton, William R., Fayetteville, Ark. (1916)
• Lilius, Aleko E., Manila, P.I. (1931)
• Lilly, Eli & Company, Indianapolis, Ind. (1936)
• Limelight, Palm Springs, Calif. (1935)
• Lincoln, Joseph C., Villa Nova, Pa. (1920-1936)
• Lincoln Motor Co., Detroit, Mich. (1927)
• Lincoln National Life Inc. Co., Fort Wayne, Ind. (1928)
• Lindlahrs Magazine, New York, N.Y. (1930)
• Lindquist, H.L., New York, N.Y. (1935)
• Lindsay, Vachel, Springfield, Ill. (1930)
• Lionel Magazine, New York, N.Y. (1930-1938)
• Lions Club Magazine, Chicago, Ill. (1924)
• Liotta, Josephine, New York, N.Y. (1938)
• Lippincott's Magazine, New York, N.Y. (1914)
• Literary Agency of London, London, England. (1911-1915)
• Literary Associates, Inc., Philadelphia, Pa. (1932)
• Literary Business of James Knapp Reeve, Franklin, Ohio. (1928)
• Literary Features International Syndicate, New York, N.Y. (1937)
• Literary Features, Ltd., London, England. (1937)
• Literary Florida, Tampa, Fla. (1939)
• Literary Year Books Press, Liverpool, England. (1927)
• Litsey, Edwin Carlile, Lebanon, Ky. (1926)
• Littel, Edmund M., Traverse City, Mich. (1937)
• Little Flower Circle, Grand Rapids, Mich. (1932)
• Little Flower Magazine, Oklahoma City, Okla. (1928)
• Little Review, Chicago, Ill. (1914)
• Little Story Magazine, Philadelphia, Pa. (1920)
• Live Girl Stories, New York, N.Y. (1929)
• Live Wire, Buffalo, N.Y. (1927-1928)
• Lively Stories, New York, N.Y. (1930)
• Lloyd, David, New York, N.Y. (1936-1937)
• Lloyd, Everett, San Antonio, Tex. (1928)

Correspondence to or from:

• Lockett, H.W., New York, N.Y. (1936)
• Locomotive Firemen and Enginemen's Magazine, Cleveland, Ohio. (1923-1931)
• Loew's Moviegower, New York, N.Y. (1936)
• London, Jack, Glen Ellyn, Calif. (1913)
• London Daily Mail, New York, N.Y. (1929-1931)
• London Evening Standard, London, England. (1934)
• Lone Ranger Magazine, New York, N.Y. (1937)
• Long, John Limited, London, England. (1926-1927)
• Long, Pearl D., Chicago, Ill. (1913)
• Long, Ray, Hollywood, Calif. (1931-1934)
• Long Island Autoist, Brooklyn, N.Y. (1927)
• Longmiller, Henry, Indianapolis, Ind. (1915)
• Longstreth, T. Morris, Ottawa, Ont. (1933)
• Look, Des Moines, Iowa. (1939)
• Lookout, Cincinnati, Ohio. (1924-1935)
• Loose-Wiles Biscuit Co., Kansas, Mo. (1928)
• Lord, Erskine M., Osborn, Mo. (1923)
• Lord & Thomas and Logan Advertising, Chicago, Ill. (1932)
• Lorillard, P. Company, New York, N.Y. (1923)
• Loring, Emilie, Boston, Mass. (1932-1935)
• Los Angeles Down Town Shopping News Corp., Los Angeles, Calif. (1936)
• Los Angeles Evening News, Los Angeles, Calif. (1936)
• Los Angeles Herald & Express, Los Angeles, Calif. (1936)
• Los Angeles Illustrated Daily News, Los Angeles, Calif. (1933)
• Los Angeles Life, Los Angeles, Calif. (1922)
• Los Angeles Record, Los Angeles, Calif. (1933-1934)
• Los Angeles Saturday Night, Los Angeles, Calif. (1930)
• Lothrop, Margaret M., Concord, Mass. (1936)
• Louisville & Nashville Railroad Company, Louisville, Ky. (1926)
• Louisville Automobile Club, Louisville, Ky. (1927)
• Louisville Courier-Journal, Louisville, Ky. (1914-1932)
• Louisville Herald, Louisville, Ky. (1915-1916)
• Loup City Standard, Loup City, Neb. (1934)
• Love Adventures Magazine, New York, N.Y. (1934)
• Love Affairs, Robbinsdale, Minn. (1928)
• Love Story Magazine, New York, N.Y. (1931-1933)
• Lover Mirror Magazine, New York, N.Y. (1933)
• Lovers' Magazine, New York, N.Y. (1933)
• Lowe, Paul E., Baltimore, Md. (1912)

Correspondence to or from:

• Lucas, A.C., Chandlersville, Ill. (1918)
• Lucas, Dewitt B., Detroit, Mich. (1913-1925)
• Lucas, Jay, Williams, Ariz. (1936)
• Lucas, Netley, London, England. (1927-1928)
• Luce, John W. & Company, Boston, Mass. (1917-1918)
• Luers, H.F., Minneapolis, Minn. (1930)
• Lupton, F.M. Publishing Company, New York, N.Y. (1914)
• Luther, Mark Lee, Los Angeles, Calif. (1937)
• Lutheran Young Folks, Philadelphia, Pa. (1931-1939)
• Lyle, Eugene, San Diego, Calif. (1931)
• Lynch, H.N., Kokomo, Ind. (1931)
• Lyon, J.B., Company, N.Y. (1939)
• Lyon Metallic Manufacturing Co., Aurora, Ill. (1929)
• Lytle's Lending Library, Boston, Mass. (1939)

Correspondence to or from:

• MCA Management, Ltd., New York, N.Y. (1948-1949)
• M.I.T. Club of Birshire County, Pittsfield, Mass. (1947)
• Mabie, Louise Kennedy, Pasadena, Calif. (1938)
• MacArthur, C.L. & Son, Troy, N.Y. (1908)
• MacBeth, Madge, Ottawa, Ont. (1950)
• McBride, W.L., Chicago, Ill. (1938)
• McCall Corporation, New York, N.Y. (1922-1938)
• McCann, C.W., North Hollywood, Calif. (1930)
• McCann, H.K. Company, New York, N.Y. (1926)
• McCann-Erickson, Inc., New York, N.Y. (1939)
• McCarter, Margaret Hill, Topeka, Kan. (1932)
• McCarthy's Book Store, Minneapolis, Minn. (1919)
• McClatchy, V.S., Sacramento, Calif. (1910)
• McClelland & Stewart, Ltd., Toronto, Ont. (1919)
• McClure, Marjorie Barkley, Cleveland, Ohio. (1932)
• McClure, O.J. Advertising Agency, Chicago, Ill. (1923)
• McClure Publications, New York, N.Y. (1908-1916)
• McCord, Mather M., Rome, Ga. (1928)
• McCormick, Leander J., Chicago, Ill. (1913-1925)
• McCorquodale, W.E., Orange, Tex. (1926)
• McCoy & Company, Chicago, Ill. (1914-1915)
• McCuaig, C.B., Buffalo, N.Y. (1930)
• McCutcheon-Gerson Advertising, Chicago, Ill. (1921)
• McDonald, J.C., San Antonio, Tex. (1930)
• MacDougal, R.K., South Bend, Ind. (1926)
• McGillicuddy, O.E., Toronto, Ont. (1924)
• McGlathery, Pattie, Greenwood, Miss. (1936)
• McGraw, Frank E., Billings, Mont. (1916)
• McGraw-Hill Book Company Inc., New York, N.Y. (1929-1933)
• MacHarg, William, New York, N.Y. (1921-1923)
• McHenry Flour Mills, McHenry, Ill. (1920)
• Machinists Monthly Journal, Washington, D.C. (1923)
• McIlvaine, Ellen, New York, N.Y. (1934)
• McIntosh Battery & Optical Company, Chicago, Ill. (1914)
• McIntyre, John T., Philadelphia, Pa. (1926-1938)
• McIntyre, O.O., New York, N.Y. (1927)
• McJunkin Advertising Company, Chicago, Ill. (1932)
• Mack, Helen, New York, N.Y. (1949)
• Mack, Thomas D., Albuquerque, N.M. (1923)
• McKenny, W.E., Chicago, Ill. (1920)
• McKeogh, Elsie, New York, N.Y. (1939)
• McKinley Publishing Co., Kansas City, Mo. (1928-1929)
• MacLean, Charles Agnew, New York, N.Y. (1926)
• Mcleod & Allen, Toronto, Ont. (1910)
• MacManus, Seumus, New York, N.Y. (1909-1918)
• McMichael, Jean, Toronto, Ont. (1929)
• McNary, Herbert L., Dorchester, Mass. (1932)
• Macon Chamber of Commerce, Macon, Ga. (1937)
• Mac's Magazine Shop, Chicago, Ill. (1934)

Correspondence to or from:

• Morand, Cyril, Philadelphia, Pa. (1950)
• Morehouse, Hopkins, Winnipeg, Man. (1925)
• Morehouse Publishing Company, Milwaukee, Wis. (1932)
• Morey, Walt, Dallas, Tex. (1950)
• Morgan, Ernest, Yellow Springs, Ohio. (1938)
• Morgan, J.E., Chicago, Ill. (1914)
• Morgan, John J., Boston, Mass. (1917)
• Morlan, George K., Springfield, Mass. (1948)
• Moroney's Merger, Cincinnati, Ohio. (1915)
• Moroso, John, Cresskill, N.J. (1927-1931)
• Morrill, Edward & Son, Boston, Mass. (1948)
• Morris, Gouveneur, New York, N.Y. (1913)
• Morris, William Agency, New York, N.Y. (1936)
• Morris Book Shop, Chicago, Ill. (1914)
• Morrison, Noah Farnham, Elizabeth, N.J. (1917)
• Hotel Morrison, Chicago, Ill. (1936)
• Morrow, William & Co., New York, N.Y. (1930-1939)
• Morse, Grace, New York, N.Y. (1932-1940)
• Mosher, Jack H., Toronto, Ont. (1935)
• Mosher, Thomas B., Portland, Me. (1935)
• Mostman Book Shop, Newark, N.J. (1933)
• Moss, James Clayton, Belton, Tex. (1947)
• Motion Picture Producers and Distributors of America, New York, N.Y. (1935-1937)
• Motor, New York, N.Y. (1927)
• Motor Age, Chicago, Ill. (1927)
• Motor Boating, New York, N.Y. (1924-1939)
• Motor Chat, New York, N.Y. (1925)
• Motor Express, Boise, Idaho. (1924)
• Motor in Canada, Winnipeg, Man. (1927-1930)
• Motor Maintainence, Chicago, Ill. (1927)
• Motor Service, Chicago, Ill. (1927-1930)
• Motor Topics, Cincinnati, Ohio (1939)
• Motor Travel, New York, N.Y. (1927)
• Motor West, Los Angeles, Calif. (1927-1935)
• Motordom, Albany, N.Y. (1922-1932)
• Motorists Association of Illinois, Chicago, Ill. (1930)
• Motorman Conductor and Motor Coach Operator, Detroit, Mich. (1940)
• Motorowner, Kansas City, Mo. (1928)
• Motortrade, Kansas City, Mo. (1928)
• Motour, Cincinnati, Ohio (1927)
• Moulton, Roy K., New York, N.Y. (1923)
• Mounier, J.F., Newport Beach, Calif. (1935)
• Moving Picture Review Digest, New York, N.Y. (1936)
• Movie Home Journal, Boston, Mass. (1932)
• Movienews, Chicago, Ill. (1933)
• Movie Romances, Chicago, Ill. (1933)
• Mowery, William Byron, Sarasota, Fla. (1932-1938)
• Mowre, Carson W., New York, N.Y. (1935)
• Moyle, Seth, New York, N.Y. (1913-1916)

Correspondence to or from:

• Mudie's Select Library, London, England. (1928)
• Mueller, C.C., Philadelphia, Pa. (1919)
• Mueller, D.G., Chicago, Ill. (1914)
• Mueller, Fred J., Dunning, Ill. (1913)
• Muelling, J.A., Manchester, N.H. (1933)
• Mullaney, P.J., New York, N.Y. (1949)
• Mulligan, Charles J., Chicago, Ill. (1912)
• Mulvaney, R.P. & Company, Chicago, Ill. (1935-1945)
• Mumford, Ethel Watts, New York, N.Y. (1936-1940)
• Muchweiler, B.J., Philadelphia, Pa. (1914-1930)
• Mundschau, G.J., East Troy, Wis. (1936)
• Mundy, Talbot, Carmel, N.Y. (1936)
• Munford, James, Pomona, Calif. (1947)
• Munier, W.S., Hollywood, Calif. (1921)
• Munsell, Joel, Albany, N.Y. (1915)
• Murphy, J.M., Bridgeport, Conn. (1914)
• Murphy, Thelma, Youngstown, Ohio. (1930)
• Murray, Arthur, New York, N.Y. (1938)
• Murray, Norbert D., St. Paul. Minn. (1937)
• Murray & Terry, Chicago, Ill. (1915)
• Murthy, Nadig Krishna, Columbia, Mo. (1948)
• Muscalus, J., Buffalo, N.Y. (1952)
• Mustard Plaster, New York, N.Y. (1928-1929)
• Mutual Film Corporation, Chicago, Ill. (1918)
• Mutual Insurance Journal, Lincoln, Neb. (1926-1927)
• Mutural Oil Company, Kansas City, Mo. (1924)
• Myers, J.E., Evanston, Ill. (1915)
• Myers, M.R., Oak Park, Ill. (1923)
• Myers, Will H., Cincinnati, Ohio. (1919)
• Mygatt, Gerald, New York, N.Y. (1941)
• Myrtle, William J., Chicago, Ill. (1915)
• Mystery League Magazine, New York, N.Y. (1934)
• Mystery Stories, New York, N.Y. (1926-1927)

Correspondence to or from:

• Mademoiselle, New York, N.Y. (1935-1941)
• Madison Buyer's Guide, Madison, Wis. (1934)
• Madison State Journal, Madison, Wis. (1912)
• Magazine, Chicago, Ill. (1935)
• Magazine Digest, New York, N.Y. (1942-1944)
• Magazine, Exchange, Chicago, Ill. (1944)
• Magazine Feature Service, Chicago, Ill. (1928-1941)
• Magazine Maker Publishing Co., New York, N.Y. (1912)
• Magazine of Business, New York, N.Y. (1929)
• Magazine of Wall Street, New York, N.Y. (1919)
• Magazine World, New York, N.Y. (1925-1947)
• Magee, John Company, Chicago, Ill. (1911-1912)
• Magnificant, Manchester, N.H. (1926-1939)
• Magniphone Company, Chicago, Ill. (1916)
• Maier, Howard, New York, N.Y. (1949)
• Maine Motorist, Portland, Me. (1930-1932)
• Maize, Lillian Taft, Pasadena, Calif. (1936)
• Management, Chicago, Ill. (1927-1928)
• Mandick, John, Chicago, Ill. (1949)
• Mandick, Richard, Chicago, Ill. (1947)
• Manhattan Merchant, New York, N.Y. (1930)
• Manley, Stuart, Cloquet, Minn. (1946)
• Mann, Helen Avis, Madison, Wis. (1945)
• Mannados Bookshop, New York, N.Y. (1948)
• Mansfield, Justin, Chicago, Ill. (1942)
• Manufacturers Club of Philadelphia, Philadelphia, Pa. (1927)
• Manufacturers News, Chicago, Ill. (1927-1928)
• Manufacturers Record, Daytona Beach, Fla. (1928)
• Manufacturing Industries, New York, N.Y. (1928)
• Manuscript Market Guide, Highland Falls, N.Y. (1928)
• Manuscript Mart, Chicago, Ill. (1928)

Correspondence to or from:

• Maranatha Builders, New York, N.Y. (1938)
• Marathon Paper Mills Company, Rothschild, Wis. (1916)
• Marbury, Elisabeth, New York, N.Y. (1934-1935)
• Marchbanks Press, New York, N.Y. (1932)
• Marconi, David, Oakland, Calif. (1950)
• Marcosson, Isaac F., New York, N.Y. (1927)
• Margolius, Hans, Miami, Fla. (1951)
• Marine Journal, New York, N.Y. (1932)
• Marine Research Society, Salem, Mass. (1926)
• Mark, Agnes Geary, Utica, N.Y. (1946)
• Mark Cross Company, New York, N.Y. (1936)
• Market Growers Journal, Louisville, Ky. (1927)
• Marks, H.M. & Company, Chicago, Ill. (1916-1923)
• Marquand, J.P., New York, N.Y. (1941)
• Marquis, A.N. Company, Chicago, Ill. (1919-1944)
• Marsh, Ada K., Hove, England. (1926-1927)
• Marsh, Richard, Haywards Heath, England. (1915)
• Marshall, Don, Pasadena, Calif. (1948-1949)
• Marshall, Eleanor M., Hamden, Conn. (1949)
• Marshall, Philip, Hollywood, Calif. (1933)
• Marshall Evening Chronicle, Marshall, Mich. (1921-1922)
• Marshall Field and Company, Chicago, Ill. (1916-1948)
• Marshall-Jackson Company, Chicago, Ill. (1944)
• Martin, Helen R., Harrisburg, Pa. (1934-1937)
• Martin, Vincent F., Whittier, Calif. (1953)
• Martyn, Lewis C., Los Angeles, Calif. (1934)
• Marvin, Langdon P., New York, N.Y. (1924)
• Marx, Agnes Geary, Utica, N.Y. (1946)
• Maryland Farmer, Baltimore, Md. (1921)
• Maryland Motorist, Baltimore, Md. (1927)

Correspondence to or from:

• Mason, Edith Huntington, Chicago, Ill. ([19--])
• Mason, Grace Sartwell, New York, N.Y. (1931-1932)
• Masonic Home Journal, Louisville, Ky. (1929)
• Masonic Magazine, Detroit, Mich. (1928)
• Masonic News, Detroit, Mich. (1930)
• Masonic Observer, Chicago, Ill. (1940)
• Masonic Outlook, New York, N.Y. (1926-1927)
• Massachusetts Guardsman, Boston, Mass. (1938)
• Masson, Thomas L., Glen Ridge, N.J. (1923-1926)
• Masterman, Mildred Stanley, Portland, Me. (1952)
• Mateo, F. Alex, Lima, Peru. (1951)
• Mathews, Betty, Chicago, Ill. (1950)
• Mathews Company, Detroit, Mich. (1936)
• Mathews-Northrup Works, Buffalo, N.Y. (1928)
• Matson, D.H., South Whitley, Ind. (1930)
• Matteson-Fogarty-Jordan Co., Chicago, Ill. (1930)
• Mattingly, Seth W., Dearborn, Mich. (1947)
• Mauerman, Ruth, Chicago, Ill. (1935)
• Maxwell, Eleanor G., Pittsburgh, Pa. (1953)
• Maxwell, Victor, New York, N.Y. (1926)
• Mayer, Howard G., Chicago, Ill. (1935)
• Mayer, Irma R., Denver, Colo. (1935)
• Mayer, Ruth R., New York, N.Y. (1933)
• Mayer Service, Los Angeles, Calif. (1937)
• Mayer Studio, Los Angeles, Calif. (1922)
• Mayfair, Toronto, Ont. (1940)
• Mayflower Company, London, England. (1924)
• Mayo, Eva B., [?]. (1901)
• Maytag Company, Newton, Iowa. (1928-1929)

Correspondence to or from:

• Mead, Daniel L. Literary Agent, New York, N.Y. ([19--])
• Mead, E.S., Chicago, Ill. (1917)
• Mead, Frank S., Bloomfield, N.J. (1936)
• Mead Johnson & Company, Evansville, Ind. (1946)
• Mead Pulp and Paper Company, Chillicothe, Ohio. (1927)
• Mead Sales Company Inc., New York, N.Y. (1946)
• Meador Publishing Company, Boston, Mass. (1937)
• Mealand, Richard, Fairfield, Conn. (1947)
• Mearson, Lyon, New York, N.Y. (1922-1945)
• Medearis, M., Brentwood, Mo. (1948)
• Medlyn, Arthur F., Pittsfield, Mass. (1947-1948)
• Meek, B.R. & Sons, Louisville, Ky. (1916)
• Meek, J.W., Camden, Ark. (1915)
• Meeker, George R., Hollywood, Calif. (1936)
• Meigs, Cornelia Lynde, Bryn Mawr, Pa. (1941)
• Melbourne Argus, Melbourne, Australia. (1912)
• Melbourne Times, Melbourne, Australia. (1932)
• Mellen, Joseph H., Washington, D.C. (1939)
• Mellett, John Calvin, Indianapolis, Ind. (1928)
• Mellott, M., Longmont, Colo. (1952)
• Melnikov, Dimitri, Pasadena, Calif. (1930-1931)
• Meloney, William Brown, Lyme, Conn. (1943-1944)
• Melrose, Andrew, London, England. (1914)
• Melton, Louise D., Alta, Calif. (1952)
• Memphis Commercial Appeal, Memphis, Tenn. ([19--])
• Memphis News Scimitar, Memphis, Tenn. (1910)
• Memphis Press-Scimitar, Memphis, Tenn. (1932)
• Mendel, Adele, Chicago, Ill. (1912)
• Mendelssohn, James R., Chicago, Ill. (1933)
• Mendoza, Isaac Book Shop, New York, N.Y. (1918)
• Hotel Menger, San Antonio, Tex. (1916)
• Menorah Journal, New York, N.Y. (1927-1932)
• Mentor, New York, N.Y. (1927)
• Merchantile Publishing Co., Dallas, Tex. (1936)
• Merchandising Magazine, Washington, D.C. (1931-1933)
• Meredyth, Bess, Los Angeles, Calif. (1918)
• Merriam, G. & C. Company, Springfield, Mass. (1911-1915)
• Merritt, Mauch, Westfield, N.J. (1944-1946)
• Merry Magazine, Madras, India. (1935)
• Merwin, Samuel, New York, N.Y. (1914-1932)

Correspondence to or from:

• Messenger of the Precious Blood, Carthagena, Ohio. (1938)
• Messenger of the Sacred Heart, New York, N.Y. (1931-1941)
• Messenger of Our Lady of Sorrows, Chicago, Ill. (1924-1929)
• Messner, Julian, Inc., New York, N.Y. (1933-1939)
• Meteor Stamp and Publishing Co., Toronto, Ont. (1914)
• Methodist Book Concern, Cincinnati, Ohio. (1914-1937)
• Central Methodist Episcopal Church, Endicott, N.Y. (1935)
• Methodist Episcopal Church, Nashville, Tenn. (1928)
• Metropolis, Newark, N.J. (1934-1935)
• Metropolitan Home Journal, New York, N.Y. (1931-1932)
• Metropolitan Life Insurance Company, New York, N.Y. (1924-1926)
• Metropolitan Newspaper Service, New York, N.Y. (1921-1927)
• Metropolitan Publishers, Chicago, Ill. (1932)
• Metropolitan Review, New York, N.Y. (1926)
• Metropolitan Sound Studios, Hollywood, Calif. (1930)
• Meyer, E.M., Chicago, Ill. (1915)
• Mezquida, Anna Blake, San Francisco, Calif. (1936)

Correspondence to or from:

• Michigan Business Farmer, Mt. Clemens, Mich. (1921-1927)
• Michigan Catholic, Detroit, Mich. (1923-1932)
• Michigan Christian Advocate, Detroit, Mich. (1932)
• Michigan Manufacturer and Financial Record, Detroit, Mich. (1927)
• Michigan Motor News, Detroit, Mich. (1938)
• Michigan Patron, Adrian, Mich. (1920)
• Michigan Ruralist, Grand Rapids, Mich. (1936)
• Middle West Utilities Co., Chicago, Ill. (1930)
• Society of Midland Authors, Chicago, Ill. (1918)
• Midland Target, Oak Park, Ill. (1931)
• Midnight Mystery Stories, New York, N.Y. (1922-1923)
• Midwest Publishing Co., Appleton, Wis. (1930)
• Midwest Publishing House, Marion, Ind. (1928)
• Miers, Earl Schenck, New Brunswick, N.J. (1942)
• Miles, Floyd F., Des Moines, Iowa. (1912)
• Miles, O.P., Pittsburgh, Pa. (1915)
• Mill and Factory, New York, N.Y. (1927-1939)
• Millan, L., Richmond Hill, N.Y. (1949)
• Miller, Alice Duer, New York, N.Y. (1931-1937)
• Miller, Edmund E., Newark, Del. (1934)
• Miller, Edward W., Chicago, Ill. (1906)
• Miller, Frederick Scott, Chicago, Ill. (1919)
• Miller, L.C., Rockford, Ill. (1921)
• Miller, Max, La Jolla, Calif. (1938)
• Miller & Dodge, New York, N.Y. ([19--])
• Miller & Paine, Lincoln, Neb. (1915)
• Miller's Book Shop, Tulsa Okla. (1947)
• Milligan, Carl G., New York, N.Y. (1922)
• Milliken, Adelaide P., Los Angeles, Calif. (1929)
• Mills, Brian A., Saskatoon, Sask. (1944-1945)
• Mills, D.R., Omaha, Neb. (1927)
• Mills & Boon Limited, London, England. (1923-1930)
• Milwaukee News & Sentinel, Milwaukee, Wis. (1937)

Correspondence to or from:

• Mind Magic Magazine, Philadelphia, Pa.(1931)
• Mineapolis Daily Times, Minneapolis, Minn.(1942)
• Minneapolis-Moline Power Implement Company, Minneapolis, Minn.(1931)
• Minneapolis Star Journal and Tribune, Minneapolis, Minn.(1939-1943)
• Minnesota Historical Society, St. Paul, Minn.(1948)
• Minor, Frank E., Chicago, Ill.(1919)
• Minton, Balch & Co., New York, N.Y.(1932-1936)
• Miraculous Medal, Germantown, Pa.(1930-1942)
• Miranda, Steve, San Francisco, Calif.(1928)
• The Mirror, New York, N.Y.(1933)
• The Mirror, Winnipeg, Man.(1940)
• Miss America, New York, N.Y.(1943)
• "Mrs", New York, N.Y.(1939)
• The Missionary, Washington, D.C.(1927-1938)
• Mississippi Motor News, Davenport, Iowa.(1927)
• Missouri Farmer, Columbia, Mo.(1938-1940)
• Missouri Homestead, Columbia, Mo.(1923)
• Missouri Motorist & Apropos, Columbia, Mo.(1939)
• Missouri Pacific Railway Company, St. Louis, Mo.(1923)
• Missouri Ruralist, St. Louis, Mo.(1921-1931)
• Mitchell, Charles, Roslindale, Mass.(1952)
• Mitchell, Henry Willis, New York, N.Y.(1926)
• Mitchell, Marion Strobel, Chicago, Ill.(1936-1943)
• Mitchell, Ruth Comfort, Los Gatos, Calif.(1931-1932)
• Mitchell Motors Company, Inc., Racine, Wis.(1918)
• Mittler, S., New York, N.Y.(1947)

Correspondence to or from:

• Mobile Register, Mobile, Ala. (1907)
• Model Builder, New York, N.Y. (1938)
• Modern Agriculture, Waterloo, Iowa. (1936)
• Modern Era, Dayton, Ohio. (1931)
• Modern Homemaking, Augusta, Me. (1928)
• Modern Living, Schenectady, N.Y. (1935)
• Modern Love Magazine, New York, N.Y. (1930)
• Modern Magazines, New York, N.Y. (1930-1934)
• Modern Romances, New York, N.Y. (1932)
• Modern Story Magazine, New York, N.Y. (1928)
• Modern Woman, Los Angeles, Calif. (1938-1941)
• Modern Woodmen of America, Rock Island, Ill. (1923-1941)
• Moderwell, Mabel C., Chicago, Ill. (1932)
• Modes and Manners, Chicago, Ill. (1927)
• Moelling, Edith, Birmingham, Ala. (1925)
• Moffett, Cleveland, Los Angeles, Calif. (1923)
• Moffett, Robert L., Chicago, Ill. (1929)
• Moffitt, F.V., Chicago, Ill. (1906)
• Moline Plow Company Inc., Moline, Ill. (1926)
• Moll Drug Store, Inc., Cloquet, Minn. (1946)
• Monitor, San Francisco, Calif. (1928-1935)
• Monopol Pictures Company, New York, N.Y. (1922)
• Monroe, Dora, Baltimore, Md. (1913)
• Monroe County Labor News, East Stroudsburg, Pa. (1936)
• Monsman, J. Clover, Chicago, Ill. (1920)
• Montague, W.H., St. Louis, Mo. (1915)
• Montana Newspaper Association, Grand Falls, Mont. (1925)
• Montana Rand Corporation, Chicago, Ill. (1936)
• Montgomery, Della H., South Bend, Ind. (1953)
• Montgomery, Julia B., New Orleans, La. (1912)
• Montgomery, L.M., New York, N.Y. (1932)
• Montgomery, Laura Reid, Emington, Ill. (1918)
• Montgomery, P.A., Highland Park, Ill. (1915)
• Montgomery, Ward & Company, Chicago, Ill. (1914-1916)
• Monthly Tidings, Omaha, Neb. (1921-1923)
• Montreal Chamber of Commerce, Montreal, Que. (1943)
• Montreal Daily Herald, Montreal, Que. (1929-1943)
• Montreal Family Herald and Weekly Star, Montreal, Que. (1929-1935)
• Montross, Lynn, Pensacola, Fla. (1941)
• Monumental Printing Co., Baltimore, Md. (1928)
• Moody, Walter D., Chicago, Ill. (1913-1914)
• Mooney, Belle S., Kansas City, Mo. (1946-1951)
• Moore, Alfred D., Cincinnati, Ohio. (1931)
• Moore, Eleanor Gates, New York, N.Y. (1932)
• Moore, Frederick, Washington, D.C. (1936)
• Moore, William Gregory, Neffs Mills, Pa. (1931)
• Moorhead, J. Dane, Cleveland, Ohio (1948-1949)
• Moorepark, Howard, New York, N.Y. (1949)
• Moorshead, Frank A., Philadelphia, Pa. (1913)
• Moos, H.A., San Antonio, Tex. (1914)
• Moose Journal, Philadelphia, Pa. (1928)
• Moose Magazine, Washington, D.C. (1928-1939)
• Moose Magazine, Mooseheart, Ill. (1927-1937)