Hi Brian.The only information I have on George F. is from the Vital Statistics for Nantucket - 1850. There is no other mention of him other than his birth, so he could well have left the Island. The timing would indicate to me that there would have to be another generation between George F. b. 1824 and the daughter you mentioned, Beulah b. 1876. Of course, there could well have been a George F. Junior in between. Good luck in your search.