This series relates to the ancestors of Dr. William Tully's wife, Mary Potter Tully (1791-1853), particularly the Potter, Prudden families. Mary Tully was the daughter of the Rev. Elam Potter and Sybil Pease Potter. The Rev. Elam Potter (1742-1794) preached in Enfield, Connecticut. Sybil Pease Potter (1754-1822) was the daughter of Capt. Ephraim Pease and Tabitha Abby. Some time after 1799, she married the widower Rev. Nathaniel Prudden, successor to the Rev. Elam Potter as minister in Enfield.