Are you a descendant of Samuel D. Hartz who married Mary Ann Weltmer, who I calculate to be a great-granddaughter of Ulrich Weltmer? Mary Ann was a third cousin to my great-grandmother Catharine Weltmer, daughter of John Weltmer.
I first thought that Mary Ann's father Christian was a son of Abraham's son Abraham, but I have concluded that Christian was the son of Abraham's son Ulrich from his first marriage. Can you confirm that?
I am having a problem with my great-great-grandfather John. I assume that he was the son of Abraham's son John but have not been able to confirm that. There appears to have been another John listed in the census who I can't identify. My John was born in late 1810, so in the 1840 census, I don't know whether he would have been in the 20-29 or the 30-39 age bracket.
One final note. There is an Abraham who shows up in Harrisburg in 1840. Would you know if he is the son of Abraham? (All references to Abraham are to Ulrich's son Abraham). There is also a John from Harrisburg born about 1780 and a John born 1827. I assume that these are not Ulrich's descendants because they both lived to their 70's and 80's.