He took part in the War of 1812 as an army surgeon.
Field medicine has come a long way since then, so what equipment do Army surgeons use today?
Both he and his brother were army surgeons in the early revolutionary war.
Using skills picked up from an army surgeon, he began building a fortune as California's only doctor.
Barry went on to serve as an army surgeon working overseas.
For several days, army surgeons operated on hundreds of soldiers inside the house.
In 1921, he was commissioned lieutenant as an army surgeon.
The man knew his business as well as any army surgeon.
He was an army surgeon before achieving fame as a writer.
His father was a British army surgeon who died when he was a child.