No record of name or data on birth or death
NOTE: I have Nancy and Mary listed as daughters of Thomas Moody and Mary Witty.. This would make them Alexander's half-sisters.
If Alexander had children in addition to Nathaniel, there should have been guardians appointed for them in 1781 they were under 14 or 15. The minutes of August 1781 court mention only Nathaniel, although Nancy and Mary were not even 10 at that time. Often, even the mother was mentioned as being the guardian.
Alexander probably died while a soldier for the colonists in the Revolutionary War.