Major league ump? Minor league? - --Mischa 09:01, 16 August 2011 (EDT)
My Total Baseball lists John A. "Jack" Kerins as a regular ump in the AA in 1889-1891 and a substitute ump in the NL in 1888 and as a substitute ump in the AL in 1903. There's also a John Kerin as a susbtitute ump in the AL in 1908 and a regulr ump in the AL in 1909-1910. --Jeff 10:27, 16 August 2011 (EDT)
Is that the same guy, or another? --Jeff 10:31, 16 August 2011 (EDT)
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