sentences:  Although he was 31 years old, Green volunteered to fight in the War of 1812, serving as a lieutenant in that conflict.He married twice, first to Mary Brown in 1805 and second to Million Cooke (1785–1842, granddaughter of George Mason) in 1817.Green served in the Virginia State Senate from 1815 to 1819, representing Culpeper County and neighboring Spotsylvania, Orange and Madison Counties.