On KKMI’s Hashcabah list this past week was Elizabeth Lazarus, who, together with her sister, converted to Judaism in 1834, and completed her conversion by immersing in the Delaware River. I believe, but am not certain, that she had a Jewish father and gentile mother.Clearly anyone who would immerse in the Delaware River to convert must have the requisite faith. But I’m curious for sources on how the S&P communities handled conversion in the 17th-19th centuries.My assumption is that it must have been very rare, if for no other reason than fear of invoking a negative reaction from the Netherlands, the UK, etc.