Having been looking for John on the 1841 census I've come across two entires which could be possible. Here are the ones I've found:
The first entry:
William Prosser b: 1776 Breconshire - Farrier
Mary Prosser b: 1781 Breconshire
Lewelin Prosser b: 1816 Breconshire
Margaret Prosser b: 1821 Breconshire
John Prosser b: 1823
William Trew b: 1836 Breconshire
The second entry:
John Prosser b: 1791 Breconshire - Farrier
Elizabeth Prosser b: 1796 Breconshire
John Prosser b: 1821 Breconshire
William Prosser b: 1821 Breconshire
Mary Prosser b: 1826 Breconshire
Thomas Prosser b: 1828 Breconshire
Jennet Prosser b: 1833 Breconshire
Roger Prosser b: 1836 Breconshire
Elizabeth Prosser b: 1840 Breconshire
Now, here's my thoughts. We have to bear in mind on the 1841 census we get less information than the later censuses - ie, it doesn't record the Head or relation of each individual. It also doesn't give us the occupation of each adult in the family, only what we have to assume as the Head.
The first entry all looked very possible on the basis William, we presume the Head, is recorded as Farrier and in the later censuses your John is working in a Forge - often sons continued the occupation of their father (not always of course). My reservation about this one however is that John is not listed as being born in Breconshire - unlike the later censuses where we have found him.
The second entry also looks possible on the same basis that John b: 1791 is presumed Head is also listed as Farrier. In this entry all members of the family are recorded as having been born in the county of Breconshire.
Now, based on the above, would you like me to follow back and see if I can find anything more on John's parents - and if so, which set?? William & Mary or John & Elizabeth?
I'll wait to hear your feelings on this before I go further.
Kay
Manager