Babe Ruth holds the record with 11 40-home run seasons in mlb.
Among active players (as of Sept. 2009) Alex Rodriguez is the leader with 8 such seasons.
Darrell Evans hit 41 home runs with the 1973 Atlanta Braves (NL), and 40 home runs with the 1985 Detroit Tigers (AL). He was the first (I checked all players with 40 home run seasons before 1985).
Ty Cobb, who hit a home run in 1906, when he was 19, and smacked five home runs in 1927 when he was 40.
122 different players have had a total of 295 40-HR seasons.
Aaron, Johnson , Evans
Darrell Evans and Jim Thome
Todd Hundley (1996) with 41 Mike Piazza (1999) with 40 Carlos Beltran (2006) with 41
Darrell Evans hit 41 home runs with the 1973 Atlanta Braves (NL), and 40 home runs with the 1985 Detroit Tigers (AL). He was the first (I checked all players with 40 home run seasons before 1985).
Vinny Castilla with 3 ... he hit 40 home runs in both 1996 and 1997 and 46 home runs in 1998.
Ty Cobb, who hit a home run in 1906, when he was 19, and smacked five home runs in 1927 when he was 40.
Career Records: Overall-- Barry Bonds (762) Inside the Park-- Jessee Burkett (55) By Pitcher-- Wes Ferrell (38) Single Season Records: Overall-- Barry Bonds (73) (2001) Most by Team- Seattle Mariners (264) (1997) Seasonal Records: Most Seasons with 40 Home Runs-- Babe Ruth (11) (1920-21, 1923-24, 1926-32) Most Consecutive Seasons with 40 Home Runs-- Babe Ruth (7) (1926-32) Most Seasons with 30 Home Runs-- Hank Aaron (15) (1957-63, 1965-67, 1969-73) Most Consecutive Seasons with 30 Home Runs-- Alex Rodrigues (13) (1998-2010) Most Seasons with 20 Home Runs-- Hank Aaron (20) (1955-74) Most Consecutive Seasons with 20 Home Runs-- Hank Aaron (20) (1955-74) Most Years as League Leader-- Babe Ruth (12) (1918-21, 1923-24, 1926-31) Most Consecutive Years as League Leader-- Ralph Kiner (7) (1946-52) The person with the most home runs in his career from around the world is Sadaharu Oh from Japan with 868.
122 different players have had a total of 295 40-HR seasons.
The most players the Dodgers have had hit 40+ home runs in the same season is 2 ... 1) Roy Campanella hit 41 and Duke Snider hit 42 in 1953. 2) Gil Hodges hit 42 and Duke Snider hit 40 in 1954.
Mickey Mantle hit career home run number 300 during his 10th season in the Major leagues, on July 4, 1960 batting right handed, at Griffith Stadium vs. the Wash. Senators off left handed pitcher Hal Woodeschick. It was Mantles 20th home run of the 1960 season when he hit 40.
He was 40 years old.
Aaron, Johnson , Evans
MLB rosters are expanded from 25 to 40 on September 1. Most of the minor leagues have finished their seasons by then or are in the playoffs and their seasons will end shortly after September 1.
Darrell Evans and Jim Thome