[p. 32] "Mercy [child of Sarah O'Killey and William Cahoon] born May 7, 1717 in Chatham." [p. 51] "Mercy{4} Cahoon (Sarah{3} O'Killey, David Jr.{2}, David{1}) born May 7, 1717, died --; married 1734/35 Elisha Baker of Yarmouth, born December 11, 1712, a son of William and Mercy."
March Cohoon : ye Daughter of William & Sarah Cohoon Was Born May : ye 7th : 1757 [sic, clearly a typo intended to be 1717, as next line is sister born 1719/20].