Frank D. Keyser (1874-?) was visiting his sister Mary, an assistant to Jane Addams at Hull-House, in 1893 when Jane Addams offered him the job of heating engineer to maintain a newly installed furnace. Keyser accepted the position and later became the superintendent of the Hull-House building complex; a position which he held for over 54 years. After Frank D. Keyser married Lida Evans at Hull-House in 1901, they moved into one of the Hull-House apartments. They had no children and Lida Keyser died in 1940.
From the description of Papers, 1896-1946. (University of Illinois-Chicago Library). WorldCat record id: 56397959