At this point, I don't really have a source to offer you. A woman who does WOLF research, sent me an email with information on my Mary Wolf, who would have been the great-grandaugher of Elizabeth REISSER (as she spells it.) She starts off with "Peter Wolf (Jr.) was born around 1770 in Bethel township, Lancaster County, Pennsylvania to Peter Wolf (Sr.) and Elizabeth Reifser Sherk." Then she goes onto to elaborate on the children of Peter Wolf, Jr. I have replied to ask about her sources and for more information on Elizabeth Reisser, but she has not yet responded.
I noticed a Daniel Risser in a 1755 tax assessment list for Lebanon Township, Lancaster County, Pennsylvania. Do you know who this is?