New genealogy book at the Glenview Public Library:
Historical register and dictionary of the United States Army, from its organization, September 29, 1789, to March 2, 1903 / by Francis B. Heitman.
R355.3 HEI GENEALOGY v. 1 and 2
This is a complete list of commissioned officers of the U.S. from the organization of the Army, September 29, 1789, to the year of the list's original publication in 1903, giving the officers' full names and showing their services. The heart of the work, Part II, an alphabetical listing of the officers, runs to some 60,000 entries. Each entry contains a brief paragraph on the officer giving his state or country where born, state from which originally appointed, date of induction, rank, date of discharge, promotions, medals, battles participated in, and, in about a fifth of the entries, date of death after leaving the Army.