Unknown Latimer vs. John McPherson — Career Comparison

On the career pitching numbers, John McPherson posted a stronger line than Unknown Latimer. John McPherson posted stronger numbers in ERA (3.89 vs 4.06) and home runs allowed (0.07 per nine innings vs 0.31). By the career numbers, John McPherson had the better of this comparison — though ERA and WHIP alone don't account for era, park factors, or the defenses each pitcher worked behind.