Edward Cartwright's great-granddaughter-in-law, Bryant Cartwright, Jr.'s widow, Elizabeth, and daughters, Elizabeth and Penelope, and sons, Bryant III, Jabez, William, and Samuel, moved into Allegany County, New York between 1817 and 1822. Penelope and Abel lived briefly in Scio, New York, and relocated to Bolivar, New York by 1824. Penelope's mother and brother, William, settled in Amity Township, Allegany County, New York, with brothers, Bryant III and Samuel, residing in Scio, New York, and Jabez in Wellsville, New York. James Cartwright lived in New York State before exchanging his farm for land in Illinois. Nephews followed from Berlin, New York, where Penelope's brothers, Theodaty, Cyrus, David, and Johnathan resided. The Cartwrights farmed along East Valley Road in Andover and Alfred townships, along Highway 19 between Scio and Belmont, New York, and along Highway 275, connecting Bolivar to Richburg and to Friendship, New York. By the 1850s, Cartwrights were leaving Allegany County, migrating to Illinois and Wisconsin in search of better opportunities to support their very large families.

Three years ago, I began tracing the Cartwright family history. This is a journey that took much longer than I expected. The Cartwright family numbered eight to twelve children, most of whom lived in each generation from 1711 to the present. The children's first names across generations were often the same, complicating my research into whether the information indicated a cousin, a sibling, or an unrelated Cartwright. I searched each of the cemeteries in Allegany County, New York, to locate burials under the Cartwright name. I discovered that all Allegany County Cartwrights were related as direct descendants of Bryant Cartwright, Sr., with the exception of Cartwrights residing in Granger and Allen Townships in northern Allegany County. The Granger/Allen Cartwrights were connected by tracing back three generations to Edward Cartwright's first marriage, while the Cartwrights in this family history were all descended from Edward Cartwright's second marriage.

After three years of research, I found Cartwright descendants in both male and female lines in all the townships of Allegany County, New York; in all fifty states; in five Canadian provinces; and in Australia.