The Frank Galati Papers fill 38 boxes and span the years 1948-2006; the bulk of the papers date between 1965 and 2005. The papers consist mostly of scripts and other notes from the plays he wrote, directed or in which he acted. Biographical files include personal information about Galati and his family. They also include resumes (Box 1, Folder 1), drafts of speeches he made (Box 1, Folder 6) and materials from awards he received and workshops he attended (Box 1, Folder 7).

The prompt books for theatrical productions of Northwestern University's School of Speech include scripts for University Theatre productions, annotated for use by the prompter, along with sketches of the staging and other notes. Bound prompt books include most of the productions from number 50 (1933) through number 320 (1957).