Mrs. Margaret Heeney of Ottawa, Ontario, was the 1954 National Memorial (Silver) Cross Mother. During the national Remembrance Day ceremony in Ottawa on November 11, 1954, she laid a wreath at the base of the National War Memorial on behalf of all mothers who have lost a child in military service to Canada.

On December 29, 1941, her son, Corporal Cecil George Heeney, was killed in the line of duty while serving with the Royal Canadian Air Force.

On August 9, 1943, her second son, Flying Officer Robert Tilton Heeney, was killed in the line of duty while serving with the Royal Canadian Air Force.