[Mick]

Gibson played for the Trotters. The O’Brien Twins played for the Pirates. I think Smokey Joe Wood had the lowest career ERA.

What university did the O’Briens play another sport for?

Lowest ERA, Ed Walsh, 1.82.  Also has lowest career "FIP" which measures ability of pitcher to eliminate walks, home runs, hit by pitch and maximize strikeouts.  Effective between 1906 and 1912.  Won 40 games in 1908 in 49 starts, 464 IP.  During that span, led the league in strikeouts twice, shutouts three times, saves five times, innings pitched four times, hits allowed twice, ERA twice, losses once (went 18-20 in 1910).  Threw a great spitball.  Lowest career WHIP by any pitcher who pitched at least 10 years and second lowest career MLB WHIP ever.

Member of Hall of Fame, but voted in by Old Timer Committee, because apparently lowest career ERA and WHIP isn't enough to get in by a straight vote of the sportswriters.

[Mick]

Gibson played for the Trotters. The O’Brien Twins played for the Pirates. I think Smokey Joe Wood had the lowest career ERA.

What university did the O’Briens play another sport for?

Lowest ERA, Ed Walsh, 1.82.  Also has lowest career "FIP" which measures ability of pitcher to eliminate walks, home runs, hit by pitch and maximize strikeouts.  Effective between 1906 and 1912.  Won 40 games in 1908 in 49 starts, 464 IP.  During that span, led the league in strikeouts twice, shutouts three times, saves five times, innings pitched four times, hits allowed twice, ERA twice, losses once (went 18-20 in 1910).  Threw a great spitball.  Lowest career WHIP by any pitcher who pitched at least 10 years and second lowest career MLB WHIP ever.

Member of Hall of Fame, but voted in by Old Timer Committee, because apparently lowest career ERA and WHIP isn't enough to get in by a straight vote of the sportswriters.