14-15
Ty Cobb. Cobb was born December 18, 1886 and hit his first MLB home run at age 18 (September 23, 1905 against Washington) and his final MLB home run at age 41 (May 16, 1928 against Cleveland).
the average age is about 11 or twelve...when you hit puberty
Daniel Sepic of Pennsylvania hit the first ever home run.
Paul O'Neill
That was Bill Duggleby of the Philadelphia Philles who hit a home run in his first at bat on April 21, 1898. That home run was a grand slam and he was also the first batter in MLB history to hit a grand slam home run in his first at bat. Duggleby had an 8 year career, ending up with a 93-102 record and a 3.18 ERA. He hit 6 home runs in his career and wound up with a .165 career batting average.
Babe Ruth hit his first home run in 1915. As he was born in 1895, he would be 20 years old when he hit his first home run.
Yes, both players hit home runs before they were 20 years old. Ty Cobb hit 1 home run in 1905 at the age of 19 and Staub hit 6 for Houston.
Travis Lee (who???) hit the first home run in the first regular season home game played on March 31, 1998
Rusty Staub was an Astro when he hit 6 home runs for the 1963 team at age 19 and a New York Met when he hit 2 home runs for the 1984-1985 teams at age 40+.
at the age of 11 with the Jackson 5, their first hit was i want you back
Barry Bond hit 762 home runs in 22 seasons. That would give him an average of 35 (34.6) home runs per season or 44 home runs per 162 game average.
The first home run at PNC Park was hit by Sean Casey of the Cincinnati Reds. The first Pirates Homerun was hit by John Vander Wal.