Inez,

My Lyle/Lile/Lyles/Lisle family was free in Powhatan and Henry counties, Virginia too. They had, however, migrated to Tennessee and Indiana well before 1850. If you like you can access my research on the family thru the link below and perhaps the resources cited there may help you. Court, tax and land records may prove helpful in your search. Who knows we may be kin and find that your Lyle family are a branch that we have yet to uncover. Good luck in your search.