Yes trying to find a Sarah married to a Mr Potipher/Potiphar in the early 1700's. I am yet to find a Christening record for Aaron, the only way i know he was born around 1729 is that on the 1759 Marriage Bonds & Allegations record to Elizabeth Cleeve it states he is 30 years of age.
His Will says he was from Barking, Essex, he was married in St Catherine, Coleman Church which i believe now to be called 'All Hallows Coleman Church' in nearby Aldgate...
There were a few burials i found through searching for a couple of Potipher's who were buried in Barking, Essex around the later part of the 1700's which could be his brothers but i cannot seem to find Christening records for them either.
A slight conundrum i guess...