Re: WATMOUGH without the 'H'
The last certificate i have, is of a David WATMOUGH who married Elizabeth Griffiths in 1883 in Sydney,
David was, according to the certificate, born in Sydney, and was 31 at the time of marriage (so b: around 1851)
His father was a Peter WATMOUGH (a cabinetmaker) and his mother is unlisted.
I am still seraching for Davids Birth details or any details concerning Peter... if i find anything that link back to the UK, i shall let you know to try and find a link