I have recently learned that the M. in John M. may stand for McMurtrie. John's father was Solomon Bartlett and his mother name was Rosanna McMurtrie/McMurtry. Solomon was alos married to Isabelle Marshall. There were four children by Rosanna, John M., James W., Mary, and Rosanna. Solomon and Isabelle had ten children. My information says that Solomon's father was names John and his father name was Nathaniel, but I have no other information about them.