The families of Howe, Dunbar and Leavitt were all early Grantham settlers. All three families secured lands in Grantham as part of the charter granted to Baron Grantham in 1761, and all three families "have Grantham hills named after them," according to Elmer M. Hunt in New Hampshire Town Names And Whence They Came. "The Leavitts are said to have had at one time fifty children in attendance at the town's school, and over the years no fewer than seventeen teachers."