That's very good of you to find these. I think I need to establish how ephraim is related to Jane housden first though? Not having much luck with that on SEAX yet. However, I did discover Townsend baptisms in barking, so I am next looking up Townsend marriages to see if related to the housdens or to jane's mother. Don't have her surname as can't find her marriage to Thomas Housden. Must be around 1720 as first child born in 1724 and Thomas was born in 1795, so wouldn't be of age til 1816. If I could find this marriage, it would solve quite a few queries.
Love a good puzzle but this one is taking a while!