Re: William PROWSE d.ca.1837 West Derby
A William Prowse married a Jane Bichall in Liverpool in the early 1800s. They established a shipping company in Liverpool. This may be the couple you are interested in.
There is a great deal of information on William in the book "Prowse Family History" prepared by;
Mrs Sandor L Tako (Susan Tako)
189 Stone House Road, Hendersonville, North Carolina 28739 USA
Phone: 828-694-1161Fax : 828-694-1395
She may still have a copy.