John Sheldon was born between 1627 and 1630 in England  - Billerica vital records says he was 63 when he died on 24 May 1690 in Billerica, Middlesex Co., Massachusetts. He was married to Mary Converse on 1 Feb 1658/59 in Woburn, Middlesex Co., Massachusetts.

Mary Converse was born about 1622 in England. She was also known as Sarah. Children were:

i. Deacon John Sheldon Jr.