MLB's award for the best hitter in each league is named after which player?

What position did Edgar Martínez mostly play, becoming the award's namesake? MLB's award for the best designated hitter is named after which player? MLB's award for the best reliever in the American League is named after which pitcher? MLB's award for the best reliever in the National League is named after which pitcher? Which player was the first to hit 500 home runs? Which player was the first African American manager in MLB, hired by Cleveland in 1975? Which slugger won MVP awards in both the National and American Leagues, the first to do so? Which Tigers slugger missed years for military service and hit 58 home runs in 1938?