John Diffin
- Born
- 1 Jan 1790
- Died
- 25 Oct 1875
- Gender
- Male
- Place of migration
- Stayed in Ireland
John is my 3X great Grandfather, after his wife Margaret died in 1850, he married Mary Clarke in 1853. Mary herself was a widow. They lived in the townland of Serse near Newry. The parish is Drumbanagher.

