Thanks for the helpful suggestions and links. I can't see them on the pages displayed, though I wonder if they could be on the missing pages mentioned. Isaac's mother and some unmarried siblings are there in Easton, as I already knew. All the rest of the family and the 11 children with the exception of Isaac have been traced in the 1861. As mentioned in an earlier post, Isaac died in 1869 in Easton, a few months after his son, also Isaac, was born. Think I shall have to send for his death cert for more details.