New Castle Delawarehttp://nc-chap.org/eckman/pdfs/68_AlexanderE3rd.pdf
Archibald Alexander (1755 – September 12, 1822) was an American physician and politician from New Castle County, Delaware, near New Castle. He was a veteran of the American Revolution and a member of the Democratic-Republican Party, who served in the Delaware General Assembly.
... 3. Archibald [Alexander, son of Robert], a physician, lived in New Castle, Del. ...