Jimmie Foxx, 50 in 1939, was the most I could find
mickey mantle
right handed hitters
Right now Barry Bonds.
It has happened twice. On April 8, 1993, switchhitter Carlos Baerga of the Cleveland Indians hit a home run in the seventh inning off left hander Steve Howe. Later in the inning, he hit a homer off right hander Steve Farr. It happened again on August 29, 2002, when switch hitter Mark Bellhorn of the Chicago Cubs duplicated the feat in a game against the Milwaukee Brewers.
Hank Aaron, Felipe Alou, Ernie Banks, and Frank Robinson each hit 7 home runs off of Koufax, the most of any right handed batter.
Barry Bonds has the most career home runs with 762.
He holds the major league records for most home runs in a career (762) and most home runs in a season (73).
Babe Ruth is third on the all time home run list with 714 home runs.
Babe Ruth with 714 home runs
Hank Aaron had the most home runs for a regular season.
Josh Hamilton with the Texas Rangers with 35 home runs in 2008
Barry Bonds has the most home runs in Major League Baseball (762).