Question: Ryan Jones and Mark McGwire were both American former professional baseball players, which one led the major leagues in home runs?

Mark David McGwire (born October 1, 1963), nicknamed Big Mac, is an American former professional baseball player and currently a bench coach in Major League Baseball (MLB).  As a first baseman, his MLB career spanned from 1986 to 2001 while playing for the Oakland Athletics and the St. Louis Cardinals.  Each season from 1996 to 1999, he again led the major leagues in home runs.  He quickly grabbed media attention in 1987 as a rookie with the Athletics by hitting 33 home runs before the All-Star break, and would lead the major leagues in home runs that year with 49, setting the single-season rookie record.  He appeared in six straight All-Star Games from 1987 to 1992 despite a brief career decline related to injuries.  Another string of six consecutive All-Star appearances followed from 1995 to 2001. <SEP> August Joseph "Gus" Williams, Jr. (May 7, 1888 – April 16, 1964), known also as "Gloomy" Gus Williams, was a German American professional baseball player whose career spanned 10 seasons, five of which were spent in Major League Baseball (MLB) with the St. Louis Browns (1911–15).  Over his major league career, Williams batted .263 with 171 runs scored, 367 hits, 58 doubles, 31 triples, 12 home runs, 147 runs batted in (RBIs), and 95 stolen bases in 410 games played.  Williams career started out in 1909 with the Monmouth Browns of the Class-D Illinois–Missouri League.  After playing in the minor leagues for two seasons, Williams made his major league debut in 1911.  He had another stint in the majors in 1912.  In 1913, Williams served as the Browns regular outfielder.  He was a dead-ball era power hitter for the Browns, ranking in the top-10 amongst American League hitters in home runs during the 1913 and 1914 seasons.  He led the league in strikeouts in 1914.  Williams would make his last appearance in the major leagues during the 1915 season.  He would go on to play in the minors with the Toronto Maple Leafs (1915), Nashville Volunteers (1916), Louisville Colonels (1917), and Indianapolis Indians (1918).  In the minors, he compiled a career batting average of .293 with 838 hits in 759 games played.  Williams also played semi-professional baseball after leaving the professional circuit.  He batted and threw left-handed.  During his baseball career, Williams stood at 6 ft and weighed 185 lb . <SEP> Ryan Matthew Jones (born November 5, 1974) is an American former professional baseball player who spent 14 seasons in minor league baseball and the independent baseball leagues.  He hit over 200 professional home runs in his career.  He had been compared to Mark McGwire.  Once considered a potential 30 home run hitter at the major league level, he peaked briefly at Triple-A but never reached the big leagues. <SEP> The Bash Brothers are a duo of former baseball players consisting of Jose Canseco and Mark McGwire.  Both prolific home run hitters, the two were teammates in Major League Baseball (MLB) for seven seasons with the Oakland Athletics, helping the team win a World Series title in 1989.  The two began celebrating homers by bashing each other's forearms, which spawned a marketing campaign that was a takeoff on The Blues Brothers.  After retiring from playing, Canseco and McGwire both admitted to using anabolic steroids during their careers.