In 1931, Paul Derringer had a very good rookie year where he went 18-8 and helped his St. Louis Cardinals win the World Series. He had a poor 1932 season, and he was traded early in ’33 to the Cincinnati Reds, and his year ended with an abysmal 7-27 record. It would slowly turn around for Derringer after that.
One of the most underappreciated members of New York Yankees folklore, Charlie "King Kong" Keller was known for his incredible strength and corresponding Home Runs, but he probably should be more known for his plate discipline. Keller would twice lead the American League in Walks and had an On Base Percentage over .400 seven times, six of which were enough to put him in the top ten that year. He would also lead the AL in OPS in 1943.
In the last half of the 1990s, the New York Yankees built a dynasty that would win four World Series Championships in five years. Jorge Posada missed the first one (1996), as he was not a part of the post-season roster, but the Puerto Rican Catcher would see his playing time rise, and he earned Rings with New York in 1998 and 1999.
Before there was Ernie Banks, there was Phil Cavarretta, who many in Chicago referred to as "Mr. Cub," before that was universally bestowed upon Banks.