Josiah Wilbore was born 19 December 1741 in Raynham, Massachusetts, United States to Meshach Wilbore (1702-1793) and Elizabeth Leonard (1706-1776) and died 19 June 1823 Massachusetts, United States of unspecified causes. He married Lydia Reed (1752-1818) 1768 in United States.
Children
| Name | Birth | Death | Joined with |
| Josiah Wilbor Jr. (1769-1848) | |||
| Lydia Wilbor (1771-1863) | |||
| Lebbeus Wilbur (1773-1860) | |||
| Sylvia Wilbor (1776-1842) | |||
| Almedia Wilbor (1778-1847) | |||
| Enoch Wilbur (1781-1857) | |||
| Barzillai Wilbor (1783-) | |||
| Abraham Wilbur (1785-1874) | 10 March 1785 Raynham, Massachusetts, United States | 21 July 1874 | Anna Arnold (1789-1874) |
| Peter Wilbur (1791-1848) | |||
Josiah Wilbore was born on December 19, 1741, in Raynham, Massachusetts. The 5th child and son of Meshach Wilbore (1702-1793) and Elizabeth Leonard (1706-1776), he married at the age of 27 in 1768 to 16-year old Lydia Reed (1752-1818). They had 9 children together:
- Josiah Wilbor Jr. (1769-1848)
- Lydia Wilbor (1771-1863)
- Lebbeus Wilbur (1773-1860)
- Sylvia Wilbor (1776-1842)
- Almedia Wilbor (1778-1847)
- Enoch Wilbur (1781-1857)
- Barzillai Wilbor (1783-)
- Abraham Wilbur (1785-1874)
- Peter Wilbur (1791-1848)
On June 19, 1823, Josiah died in his hometown at the age of 81.
One of Josiah's paternal-line ancestors was the brother-in-law of Plymouth Colony Governor Bradford.