John Wilson Dumbreck born 18th November 1848 in Lanark, married Catherine Brown on the 30th December 1870 at Lanark, Carstairs. They had 5 children John, Margaret, William, James, and George. Only William Glasgow Dumbreck survived to marry and continue the family line.

In 1870 John was a Farm Worker and Catherine was employed as a Farm Servant. John died in 1894 at 56 High Street Lanark of of acute nephritis.