His first and best professional season was in 1871 with the New York Mutuals, when he pitched 283 innings and had a 3.43 earned run average. His second year was with the Cleveland Forest Citys, where he played much less and had a higher ERA. In his last year, he only pitched one game, with the Elizabeth Resolutes. He completed it, giving up 23 runs, but none were earned. Wolters died in Newark, New Jersey, at the age of 72.
^Great Baseball Feats, Facts and Figures, 2008 Edition, p. 136, David Nemec and Scott Flatow, A Signet Book, Penguin Group, New York, ISBN978-0-451-22363-0
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