Surgeon General Barnes was attending physician after Lincoln's Assassination

Joseph K. Barnes (1817-1883) was a career U.S. Army surgeon who served as Surgeon General during the Civil War, overseeing the expansion and organization of the Union Army's medical services and hospital system. He continued in that role after the war, helping professionalize military medicine, and was among the attending physicians after Abraham Lincoln's assassination in 1865. Autograph letter signed as Acting Surgeon General, 1 p. in ink on "Surgeon General's Office" letterhead, May 29, 1864, to an unknown correspondent, "Can you oblige me by forwarding our minister at St. James the accompanying packages of official documents [not included] for the Army Medical School at Netley England."