John Dungan was born circa 1550 in Ireland to Patrict Dungan (c1530-) and Ann Woogan (c1531-) and died 8 August 1592 Dublin, Meath, Leinster, Ireland of unspecified causes. He married Margaret Forster (1555-1597) 1575 JL in Celbridge, Kildare, Ireland.
Children
| Name | Birth | Death | Joined with |
| Walter Dungan (1579-1626) | |||
| Edward Dungan (1582-1653) | |||
| Thomas Dungan (1584-1626) | 1584 Celbridge, County Kildare, Ireland | 21 December 1626 Hurch, Dublin, Ireland | Elizabeth Weaver (1584-) |
| William Dungan (1589-1622) | |||
Siblings