I am not directly related to Thomas. However, he married Mary Pinckard in 1845. Mary is a cousin in my line (actually my wife's line, but I call them my own). I am tracing their downline. I have Thomas and Mary with 5 children, the first three born in Weedon (Emma, Isabella, and Thomas William), then they immigrated to the USA on the ship Duke in 1850. I have found them in the 1850 and 1860 censuses in New York. They had two children born in New York (that I know of), Frederick in 1854 and Edwin F. in 1860.
I haven't been able to find any of them after 1860. If you have any more of this downline I'd be interested in collaborating; also if you are interested in the upline of Mary Pinckard, I'd be happy to share what I have.
Regards,
Steve