A. General correspondence is arranged chronologically with notable correspondents indicated on the folder headings. One folder of undated and fragmentary correspondence follows the dated material.
B. Correspondence with John R. Mott is arranged chronologically.
Correspondence of John R. Mott located in the General Correspondence section consists only of copies of letters sent to Wilder by other correspondents.
C. Family correspondence is arranged by family members:
Royal G. and Eliza Jane Wilder (parents)
Grace Wilder (sister)
William Wilder (brother)
Helene Wilder (wife)
Ruth, Grace, Elizabeth and Dorothy Wilder (daughters)