Firstly welcome.
Secondly, have you looked for the name in the SBA register? It's surprsing how many boats are there, even if the owners details haven't been kept up to date. Obviously, check previous incarnations of the same craft as well.
After that, check out Radhew's site, he has a load more, particularly Continental ones.
Unfortunately he hasn't been posting on here much lately, but then he is a busy boy.
The engine looks quite S.T. 6a.