Don Pedro League was an Independent League that was based in California
1926 Altwater, Escalon, Fresno, Gustine, Los Banos, Oakdale, Stockton, Tracy
1927 Escalon, Hughson, Manteca, Modesto, Oakdale
1928 Escalon, Manteca, Modesto, Turlock
1929 Escalon, Gustine, Lodi, Manteca, Modesto Tracy
1930 Escalon, Gustine, Manteca, Modesto, Victor
1931 Empire, Hughson, La Grange, Modesto, Oakdale
1932 Ceres, Hilmar, Hughson, Modesto, Oakdale, Riverbank, Valley Home. During the season, Hilmar moved to LaGrange.
1933 Empire entered the league; Ceres, Riverbank and Valley Home left the league.
1934 Riverbank and Turlock enter the league and Oakdale has left the league.
1940 Hughson, LaGrange, Modesto, Ripon, Turlock, Waterford