So far, Ashton Street is a mystery. Obviously it was between Race (Sassafras) and Vine, but where, exactly, is not yet known.
(1791) Jordin, Thomas & William, callico prin[t]ers, Ashton St. between Sassafras & Vine St.
(1791) Rummell, Philip, labourer, Ashton St. between Sassafras & Vine St.