File consists of Keffer's copy of a letter addressed to Bill [last name unknown] from G.H. Baker of the Robert Simpson Company, regarding the appointments of F.W. Woolworth Co. executives, and in particular Keffer's appointment as executive vice president. Two newspaper clippings about the appointments from the Thursday, March 1, 1945 edition of the Globe and Mail are attached to the letter. File also includes a clipping about Keffer from a company publication.

File consists mainly of correspondence received by Keffer from colleagues at the F.W. Woolworth Co. Several letters are from Rudolph Jahn, who replaced Keffer in Germany and was a personal friend. One of the letters from Jahn includes a report on store results (1948-1963) and (North American) banking receipts of Jahn's (1958-1962). One letter is addressed "Liebe Mitarbeiter" (beloved co-workers or employees). File also includes what appears to be a poem (in German).

File consists of correspondence addressed to Mrs. Mary Keffer regarding her husband's estate. The letters, some personal and some written on behalf of an organization, acknowledge gifts from Keffer made in his will. Also present is a newspaper clipping about his will.

File consists of material relating to the Big Horn-Powder River Corporation, Oil and Gas Producer (Denver, CO), a company in which Keffer held shares. Includes incoming and outgoing correspondence, reports to shareholders, investment statements and a manuscript note.

File consists of material relating to the Haines City Citrus Growers Association, and orders for fruit placed by Keffer with the association. Includes incoming and outgoing correspondence, a brochure, and manuscript and typescript notes.

File consists of a letter to Keffer from Norman Schneider.

File consists of two pieces of outgoing correspondence regarding Keffer's income taxes for the year 1942.

File consists of two letters from Ivan W. Keffer, both found in an envelope addressed: "to my sweetheart when I'm gone."

File consists of material relating to the Keffer reunion held in Waterloo in 1964 and the reunion committee's appeal to raise funds for the Keffer Memorial Chapel at Waterloo Lutheran Seminary. Includes correspondence and a clipping.

File consists of a letter and two versions of an affirmation signed by Keffer in his role as a director of the F.W. Woolworth Co.

File consists of material relating to the performance of the F.W. Woolworth Co. for the year 1963. Includes a profit statement, a comparative report (1962 and 1963), and a copy of a letter from Rudolph Jahn addressed to company president R.C. Kirkwood, describing the results. File also includes a letter from Jahn to Keffer.

File consists of material relating to Keffer's role as vice-president and member of the Board of Directors of the Saugeen Golf Club. Includes incoming and outgoing correspondence, financial statements, and meeting minutes.