I don't know how far involved in your Nulf/Nolf genealogy that you are, so I apologize if you already know this.
The George Nulf that was married to Susanna Edelman was a brother to Casper Nulf, Sr.-- they were both sons of Lawrence and Anna Maria (WERNER) Nulf.George was a Captain in the Rev. War, and Casper, Sr. was supposed to have served under him in George's command in a Northampton County Militia.
My 4th great grandfather was Henry Nulf, Sr who would have been a brother to YOUR George Nolf married to Magdalena Fry. It's funny that your George didn't come to Clarion County, Pa with the rest of the tribe.:-)