"General Joseph Warren, Jr - physician, Revolutionary War General and American Patriot. A key figure in the Boston pre-war era, Warren was killed at the Battle of Bunker Hill rallying the militia when a musket ball hit him the back of the head.
James Craik (1730 – 1814) He served as an army surgeon, ultimately advancing to the second-highest post in army medicine. Craik warned Washington about the plots of the Conway Cabal, and treated the wounds of General Hugh Mercer at the Battle of Princeton and Gilbert du Motier, Marquis de La Fayette at the Battle of Brandywine. Craik was one of three doctors to attend on him [George Washington] during his final illness.
Henry Knox was the Secretary of War and was also the chief artillery officer of the Continental Army during the American Revolution. Henry Knox was the first to be trusted with the infant army and the navy.