Ted Williams, with 145 RBIs in his rookie year, holds the record.
Mark McGwire with 49 in 1987 for the Oakland Athletics.
Hack Wilson holds both the National League and the Major League records for RBIs in a single season. He drove in 191 for the Chicago Cubs in 1930.
The MLB rookie record for RBIs is 145 set by Hall of Famer Ted Williams of the Boston Red Sox in 1939.
Mickey Mantle holds the American League record for games with home runs from both sides of the plate with 10. Ken Caminiti holds the National League record, also with 10. Eddie Murray holds the major league record with 11, 9 times in the American League and twice in the National League.
The MLB National League rookie home run record is jointly held by Wally Berger, who knocked 38 out of the park in his first season with the Boston Braves in 1930, and by Frank Robinson, who matched that feat in his debut with the Cincinatti Reds in 1956. Berger was 25 when he set the mark, older than the average rookie. Robinson was 21.
I couldn't find a rookie Marlins that played for the Phillies that has the record for most saves as a rookie. However, Dontrelle Willis in his rookie season had 14 wins, a Marlins team record for a rookie. He is currently on the Phillies.
The Steelers rookie record is held by wide receiver, Troy Edwards with 61 receptions in 1999.