Through the 2009 season, that is Luis Gonzalez who hit 57 home runs in 2001.
73, by Barry Bonds in the 2001 season
In MLB history, the player who hit the second most home runs in a season was Mark McGwire who hit 70 in 1998.
The record is still held by Barry Bonds.
a really good player
David Ortiz set the single-season record for most home runs by a Boston Red Sox player in 2006. He hit 54 home runs that year, which was the most in the American League.
Most likely Billy Williams, who hit 25 home run in his rookie season in 1961.
Sal Sciara 5'3.5"
Barry Bonds is the official MLB record holder for most home runs in both a season (73) and in a career (762).
49 by Harmon Killebrew in 1964 and 1969.
Barry Bonds 2001 he hit 73
Chipper Jones led the Braves in home runs in the 2007 season with 29. Andruw Jones was second with 26.
As of the start of the 2008 season, the most home runs David Ortiz has hit in a season is 54 in the 2006 season.