Alex Albritton was a pitcher with the Baltimore Black Sox, Washington Potomacs, Hilldale, Bacharach Giants, and Wilmington Potomacs during the 1921-25 period.
Negro Leagues expert Gary Ashwill has guessed that one of the players in a team photo of the Washington Potomacs is Albritton. For Ashwill's selection, see the following link (Player #4). If it's good enough for Gary, it's good enough for me.
http://agatetype.typepad.com/agate_type/ben-taylor/