Capt. married Mary Brandon on 21 Jan 1769 in Rowan Co., North Carolina. Mary (daughter of Richard Brandon and Margaret Locke) was born on 11 Nov 1749 in Rowan Co., North Carolina; died on 24 Sep 1834 in Sumner Co., Tennessee; was buried in 1834 in Sumner Co., Tennessee. [Group Sheet]

1. Richard Brandon Alexander was born on 11 Nov 1769 in Rowan Co., North Carolina; died on 15 Oct 1855.
2. Sarah Alexander was born in 1775; and died.
3. William Locke Alexander was born on 13 Aug 1775 in Rowan Co., North Carolina; died on 21 Dec 1851 in Fulton Co., Kentucky; was buried in Fulton Co., Kentucky.
4. Mary Brandon Alexander was born in Mar 1776 in North Carolina; died on 5 Mar 1873.
5. Nathaniel Alexander was born in 1779 in Cabarrus, North Carolina; and died.
6. Margaret Jane Alexander was born on 19 Oct 1780 in Rowan Co., North Carolina; died on 20 Mar 1841 in Sumner Co., Tennessee.