Hi Bryant.
Thanks for the 1841 Census info.
I feel the connection may be there due to the Billericay link, however my Mary, William's mother, had her first child in 1757, which given her probable age at that time, would make her over 100 at the time of the census.
Thanks again, at least it gives me another avenue to follow.
rgds.
Harry
PS I have realized, the Mary mentioned may well be the wife of Thomas, William's elder brother. Thanks again.