Thanks Louisa.
Yes the birth certificates (he had two - one declaring him to be female and the second declaring him to be male) and the birth registry entry i am sure are both for the same person - Mathias Allen Brewin.
Interestingly George and Ann (his Grandparents who raised him for awhile) are noted on the Baptism certificate to be his parents. They were both in their early fifties - so kind of unlikely to be his parents.
In fact, George and Anns Daughter (Sarah) is Allens' Mother - he took her maiden name of Brewin. His Father may have been a said James Maskery - noted to be his Father on Allens' wedding certificate.
Allen's Mother, Sarah Brewin married James Maskery some years after Allen was born - so he may or may not be the true Father, i guess.
Yes, all three names: Mathias, Allen and Brewin are quite unusual names - so you would think it would be easy to trace his foot-steps through the years. But alas no . . . Well it was quite easy to trace his steps - up until 1891. I have hit a brick-wall with his whereabouts from then on.
Yes, i have the wedding certificate for Allen and Catherine (attached here). Sorry, i tried to attach a jpg of the wedding certificate but it did not seem to show up. Would love to be able to upload pics here.
This site is such a wonderful resource!