If you receive this (it's been a dozen hears), by now you probably know that Amanda Stine's parents were David Stine and Sarah Flick. I have David's lineage but Sarah is a brick wall. "Jennie" was Sarah Jane Stine and she married a Wolfe. I have no evidence of David and Sarah having a daughter Julia but can't rule it out; their other children are pretty well documented, however, in church records.
In any event, now some answers are posted for anyone who finds this thread.