Bobby Thomson got his nickname the old fashioned way—-he was actually born in Scotland, and he was known for his diving catches in centerfield. Most famous for his dramatic home run that won the pennant for the Giants, Thomson was nowhere near that player by the time he arrived in Chicago in 1958. He did have a decent season that year, but his descent into mediocrity was well underway. By 1959 he was sharing the centerfield job, and by 1960 the Cubs traded him away. He retired after the 1960 season.

The Cubs maintained a nickname status quo when they acquired him and when they traded him away. They gave up a great nickname (Spook Speake) to get him, and then got a great nickname back when they traded him away (Bull Schroll).

In his two seasons with the Cubs Thomson hit a respectable total of 32 home runs, but the team finished in 5th place both years.