Francis Maxwell Williamson Dumbreck was born on the 5th October 1879, Newburgh, Fife. He married Catherine Ann McGarril on the 5th January 1901 in Stirling. They had 4 children.

Ann Clark Dumbreck born 3rd July 1901 - no further details.

Agnes Williamson Dumbreck  born 27th August 1903 continued the family line.