These files were the only ones maintained in Kimball's records as direct mail solicitations, which he apparently referred to as "mail appeals." Files consist of correspondence between Kimball and appeal recipient, as well as mailing lists and related papers.
Sub-subseries 3. Direct mail
Arrangement is based on what appears to be original order. All correspondence in the 1936 mail appeal file is arranged alphabetically. In other files, correspondence is grouped by contribution amount pledged and alphabetically within each pledge group.