In my search for my JOHN THOMAS in ship registries, I came across this website. For those searching for a THOMAS THOMAS born 1795 in the UK and RICHARD THOMAS born 1795 in the UK. THOMAS THOMAS appears to have a wife and children. Both are listed on this link, having arrive in PA: http://immigrantships.org/v6/1800v6/susquehanna18360531.html