“Ambrose Armstrong the son of Ammbrose [sic] Armstrong & Mary his wife, was born April the 13th 1760.” [Armstrong family Bible at the Virginia State Archives, Acc. 27094]

Ambrose Armstrong was mentioned in the 28 February 1768 will of his father Ambrose Armstrong. He was to receive a year of school in addition to a share of the estate. [Essex County, Virginia, Will Book 12, pages 321–322.]

On 17 December 1825, an Ambrose Armstrong witnessed the will of Thomas Crow. [Essex County, Virginia, Will Book 20, pages 293–294.]