Joseph Arnold Jr was born 1671 in Haddam, Middlesex County, Connecticut to Joseph Arnold (1626-1691) and Elizabeth Wakeman (1629-1691) and died 27 January 1712 East Haddam, Middlesex County, Connecticut of unspecified causes. He married Mary Wells (1673-1714) in Connecticut.
Children
| Name | Birth | Death | Joined with |
| David Arnold (1694-1747) | 1694 Haddam, Middlesex County, Connecticut | 20 October 1747 East Haddam, Middlesex County, Connecticut | Sarah Tyler (1697-1736) |
Siblings