This folder contains correspondence and other documents relating to Alfred O. Tate's role as Edison's private secretary, along with occasional items pertaining to Tate's private life. Routine letters addressed to Tate in his capacity as Edison's secretary or representative that do not fall under the main subject categories are generally filed in this folder. Also included are several routine items regarding John F. Randolph's role as Edison's bookkeeper and Tate's office assistant.

Letters addressed to Tate that deal with a specific subject or the business of a particular company can be found in their appropriate subject folders.