Jean Frederick Masson was born in 1722 in Montbeliard, France, and was christened 89 August 1722 in Pierrefontaine Les Blamont, Doubs, Montbeliard. He was marred to Marie Marguerite Guigne on 17 December, Lunenburg County, Nova Scotia. Their children were:

Eva Margaretha Masson - born 7 December 1771 (Aaron's descent)

George Frederick Masson - born 1766.

Jean Frederick Masson was also first married to Catherine Rolland (born 1721, Montbeliard). They had two children: Peter (born 1746 - died 18 August 1826) and Anna Catherine (born 1747, Pierrefontaine Les Blamont, Doubs, Montbeliard).

He died 8th of August, 1722 in Lunenburg County, Nova Scotia.