what are all the schools?
ainsworth, atherton, beecher, bendle, bentley, brandon, clio, davison, durand, fenton, flushing, grand blanc, hartland, kearsley, lake fenton, lakeville, linden, mt. morris, swartz creek
when did each school join the league/
1954, 1960, 1950, 1950, 1960, 1977, 1950, 1950, 1964, 1940, 1950, 1950, 1976, 1950, 1976, 1956 2nd: 1964, 1974, 1950, 1960
which school joined twice?
lakeville