Does anyone know this person? I would appreciate any additional information on him if you have it. Thanks, Kathy In the 1820 census there is only one Caswell in Allegany county and that is: 1820 NY Allegany co., Centerville, FHL # 193719, p. 10 for Jonathan Caswell: Jona. Caswell 3m -10; 1m 10-16; 1m 26-45 3f 10-16; 1f 26-45; 1 working in agriculture. ===========