He missed Dublin's win in the 1922 All-Ireland final (played 7 October 1923) as by then he was interned in the Curragh Camp. Major General Tom Ennis of the National Army, a former teammate of Stynes who took the pro-Treaty side, secured Stynes' availability for subsequent Dublin matches, and he got a winner's medal for the 1923 final (played 28 September 1924), in which he scored the final two points.
He missed Dublin's victory in the 1922 All-Ireland championship game (played on October 7, 1923) because he was imprisoned at the Curragh Camp. Major General Tom Ennis of the National Army, a former teammate and supporter of Stynes who took the pro-Treaty side, arranged for Stynes to participate in subsequent Dublin matches, and he received a winner's medal for the 1924 championship game (played on September 28, 1924), in which he scored the final two points.