 He became captain coach of Cootamundra in 1930, Queanbeyan in 1931, Mittagong in 1932 and back to Queanbeyan in 1933 to see out his rugby league career.Shumack represented NSW City Seconds in 1929 and NSW Country Seconds in 1930.Jack Shumack died on 2 January 1974 in Canberra.