Personal Papers includes address books, organizational materials, artwork, awards and certificates, financial information, biographical and genealogical information, business cards, calendars, contracts, legal information, education information including Harvard and Merricourt Boarding School, FBI file, identifications including passports, journal entries, medical information, note and note fragments, travel information, etc.

17 items. Includes drawings by Gaddis, Sarah Gaddis, and Matthew Gaddis as children. Also includes additional drawings by unidentified others.

Painting by Matthew Gaddis located in Box 127, Folder 5

Portrait of William Gaddis by a sidewalk artist during the 1933 Chicago World's Fair located in Box 129. Includes original frame.