Samuel Campbell Mason was born on 10 September 1874 at Connelpark, New Cumnock.

Samuel married Mary Robertson Graham.

Samuel and Mary had 5 children:

Mary Mason born about 1896, New Cumnock

Elizabeth Mason born about 1899, New Cumnock

Margaret Mason born about 1901

John Graham Mason born 28 May 1903. Married Jeanie Purdie Pollock.

Jessie Mason born about 1905

Samuel Campbell Mason died on 14 June 1927 at Connelpark. His wife, Mary died on 21 April 1907.