He served in the War of 1812 from Missouri.  Want proof of Revolutionary War service.  His father is believed to be either Matthew or William THOMSON, who were brothers of Charles THOMSON, Secretary of the Continental Congress.  Early families lived in Cecil Co., Maryland, and Augusta Co., Virginia.

Dictionary of American Biography, Vol. 18, p. 481, states: Charles THOMSON, Secretary of the Continental Congress was born 29 Nov 1729 in County Derry, Ireland and died 16 Aug 1824.  He came to America with his father, John THOMSON (who died on passage).  His mother died in Ireland.  He was one of six orphans set ashore at New Castle, Delaware, about 1739.  He married 1st Ruth MATHER, who died about 1770, and 2nd Hannah HARRISON on 1 Sep 1774.  He lived on his estate, Harriton, near Philadelphia.  He attended Dr. Francis Alison's Academy in Chester Co., Pa.  He was well educated, which would tend to show that he had well to do relatives in the area.

One note regarding this family was found in the National Genealogical Society Quarterly, Vol. 33, p. 74, among notices from the National Intellingencer, which states that Matthew THOMPSON died 16 Mar 1882 in Augusta Co., Va., in his 91st year.  He was a native of Ireland, but for upwards of sixty years was a citizen of Augusta Co., Va.  He was the only surviving brother of the Honorable Charles THOMPSON, Sec. to Congress during the War of 1776.

Thompson Family Magazine (1975), p. 54, lists a notice of Query #8207 reguarding Samuel ARCHER, who was the brother-in-law of General William THOMPSON of Augusta Co., Va.