The 1909–10 season was the 33rd Scottish football season in which Dumbarton competed at national level, entering the Scottish Football League, the Scottish Cup and the Scottish Qualifying Cup. In addition Dumbarton played in the Dumbartonshire Cup.
The 1909–10 season was the 33rd Scottish football season in which Dumbarton competed at national level, entering the Scottish Football League, the Scottish Cup and the Scottish Qualifying Cup. In addition Dumbarton played in the Dumbartonshire Cup. (en)