I have reached a dead end with this branch of my family tree. William (1828-aft 1895) and Prudence (1833-bef 1895) were written about in the Delaware County Biographical Review for Thomas White: "White married Melissa, dauther of Willam and Prudy A (Ingraham) Marshall, who was born March 12, 1849. Mr and Mrs Marshall occupied a farm in Rockland, and were the parents of six children - Melissa, James, Ruth, Frank, Ella and Henry. Mr Marshall is still living, a resident of Meredith; but his wife has passed away." I've also found census records in 1850 and 1860 for Rockland that seem to match up but can't find any information that makes a connection to his parents. Please reply if you have any information to share!