Youngest MLB players 300+ Total Bases in a Season

From time to time, I like to research various stats with the play index over at Baseball-Reference.com. This morning, after looking at Mike Trout's impressive stats for his first few seasons in the majors, I searched to see who the youngest players were to ever put up 300 or more Total Bases in a season. No surprise, Trout is on the list. However, I was surprised to see that only 8 players in Major League history have accomplished this feat under the age of 21.  Here is the list...

In chronological order:

1929 Mel Ott TB - 346  / H - 179 / 2B - 37  / 3B - 2 / HR - 42
1939 Ted Williams TB - 344  / H - 185 / 2B - 44  / 3B - 11 / HR - 31
1955 Al Kaline TB - 321 / H - 200 / 2B - 24  / 3B - 8 / HR - 27
1956 Frank Robinson TB - 319 / H - 166 / 2B - 27  / 3B - 6 / HR - 38
1958 Orlando Cepeda TB - 309 / H - 188 / 2B - 38  / 3B - 4 / HR - 25
1959 Vada Pinson TB - 330 / H - 205 / 2B - 47  / 3B - 9 / HR - 20
1996 Alex Rodriguez TB - 379 / H - 215 / 2B - 54  / 3B - 1 / HR - 36
2012 Mike Trout TB - 315 / H - 182 / 2B - 27  / 3B - 8 / HR - 30