http://www.nypl.org/research/chss/spe/rbk/soldiers/
NYPL, USSC Civil War Soldiers Inquiry Database
The United States Sanitary Commission's Hospital Directory
collected and recorded information concerning the location of
sick, wounded and missing soldiers for the benefit of their families
and friends. The Washington Hospital Directory Archives records
contain over 9,000 inquiry files dating from 1862-1865 concerning
soldiers and other individuals. Although most of the files refer to
state volunteer soldiers, there are also inquiries for U.S. Army regulars,
U.S. Colored Troops, Navy and Marine servicemen, Confederates,
government and USSC employees, hospital staff and civilians.