File consists of 33 letters received by John S. and Lydia Catherine Anthes from Martha Rieder. Also includes 1 letter from Ella Anthes Cook (June 30, 1914) and a note from Talmon Rieder enclosed with another letter (December 25, 1914). Several letters are addressed individually to "mother", some include drawings and notes from Martha's children, and some are undated. Letters make reference to day to day happenings such as Margaret getting tonsillitis, Paul Rieder's birth, Talmon's busy work schedule, and the death of Henry William Anthes.

File consists of the diary of Martha Rieder covering the period from March 1, 1895, to April 24, 1898. Diary was kept in ink and pencil in an unlined notebook, and the author has dated the entries and separated them with a horizontal line. Note after last entry: "Finis 1st book, continued in Book No. II."

File consists of the diary of Martha Rieder covering the period from April 25, 1898, to July 11, 1899. Diary was kept in ink and pencil in an unlined notebook, and the author has dated the entries and separated them with a horizontal line. Enclosures: cutout of three roses, invitation.

File consists of the diary of Martha Rieder covering the period from August 11, 1902, to August 20, 1902, during a trip down the St. Lawrence River with her parents and sister Ella. Diary was kept in ink in a lined notebook.

File consists of the diary of Martha Rieder covering the period from December 15, 1904, to December 27, 1905. Diary was kept in ink in a printed pocket diary.