Forty-Two Years in the White House — Irwin Hoover (1939).
While you celebrate President’s Day, in whatever manner you do such a thing, check out this memoir by a man who served as the White House Chief Usher for 24 years. Having been sent to install the first electric lights in the executive residence, Hoover remained employed in some capacity in the White House for the next forty-two years. He served ten administrations, from Benjamin Harrison to F.D.R., and was in charge of all social affairs.
"From the oldest to the youngest they always had a book or magazine before them. The President in particular would devour a book, and it was no uncommon thing for him to go entirely through three or four volumes in the course of an evening. Likewise we frequently saw one of the children stretched out on the floor flat on his stomach eating a piece of candy with his face buried in book." — Irwin Hoover writing about President Theodore Roosevelt’s family.