James Dumbreck married Mary Ellen Porter on the 7th October 1948.  The had 6 children.

Margaret Hannah Dumbreck born 14th April 1949 - no further details.

Agnes Dumbreck born 1954 - died 1954.

Brian Dumbreck born 12th May 1956  - no further details.

James Dumbreck born 12th May 1956  - no further details.

May Ellen Dumbreck born 4th August 1962  - no further details.

Steven Dumbreck born 4th August 1962  - no further details.