I, too, am trying to trace a Levin Walker b. Maryland, 1785. He was in the Virginia Revolutionary War. Married Mary Polly Knight in Guilford Co., SC in 1823. Received land grant in 1838 and moved to Coweta Georgia. I then found him and the family in the 1850 St. Clair Co., AL. Census. I have seen his name as Leven, Levin, and Levi. . He would be my ggggrandfather. I am the descendent of (1)Leven, (2) James, (3) William Henry, (4) James Asberry, and (5) George Washington Walker. Does any of this fit with your Levi Walker? Would love to hear from you..