 Martin bequeathed his Greenway Court estate and an adjoining to his housekeeper Betsy Powers.Martin's brother Denny Fairfax was unable to properly maintain the proprietary and conveyed the remaining lands in 1797, thus terminating the Fairfax and Martin families' interests in the proprietary before it was formally dissolved in 1806.The city of Martinsburg, West Virginia, was named for Martin by his friend Adam Stephen.