[terry]

On Terry's switch hitter question - Pete Rose and Mickey Mantle?

Good guess, but no. Both Rose and Mantle hit .300 from only one side of the plate.

One of the two switch-hitters who hit .300 from both sides was an infielder who played in the 1990s, 2000s, and 2010s. 

The other one was an infielder who played for two National League teams in the 1920s and 1930s.

[terry]

On Terry's switch hitter question - Pete Rose and Mickey Mantle?

Good guess, but no. Both Rose and Mantle hit .300 from only one side of the plate.

One of the two switch-hitters who hit .300 from both sides was an infielder who played in the 1990s, 2000s, and 2010s. 

The other one was an infielder who played for two National League teams in the 1920s and 1930s.