Oldring's, and like many of this era, he could steal bases, nabbing 20 or more four times.
Fast forward several decades and you have Wally Moses (1935- 41, 49-51), who hit over .300 in all of his first seven seasons. 1937 was easily his best overall as he hit .320 with 208 hits, 45 doubles, 13 triples, 25 HR, 86 RBI, and 113 runs. Elmer Valo (1940-56) played during this same era, though he wasn't a particularly impressive offensive force. He hit .300+ a few times, but never had more than 10 HR or 14 SB in a season.
Gus Zernial (1951-57) only played for the A's for seven seasons, but he was quite productive hitting 25+ HR five times with 100+ RBI three times. His best numbers perhaps came in 1953 when he hit .284 with 42 HR and 108 RBI.
And finally Joe Rudi (1967-76, 82) was a good fielder (three Gold Glove awards) who had moderate power. 1974 was his best year as he hit .293 with 39 doubles, 22 HR and 99 RBI. In both 1972 and 1974, Rudi was amongst the A's getting MVP consideration and he finished second in the vote each year.
As with the A's outfield, they are absolutely loaded with starting pitchers to consider. Lefty Grove's (1925-33) resume is just too strong to ignore, so he is the ace of this all-time team. He pitched the first, and better, half of his career with the Athletics. He had seven straight 20+ win seasons, and regularly had an ERA well below 3.00 (even while the league average was well over 4.00). He won the pitching Triple Crown two years in a row, first in 1930 when he posted a 28-5 record, with a 2.54 ERA and 209 strikeouts. Then in 1931 he won the AL MVP award with a ridiculous 31-4 record, 2.06 ERA and 175 strikeouts. While with the A's he led the AL in ERA five times, wins four times, and strikeouts seven times. He was also solid in the World Series of 1929-31, going 4-2 with a 1.75 ERA. He was so versatile he even accumulated 51 saves for the Athletics, including a league-leading 9 in 1930 (when he led the league with those 28 wins).
Another lefthander, and by far the club's leader in both games started, innings pitched, and wins, Hall-of-Fame left-hander Eddie Plank (1901-14) will be next on this staff. He pitched for the first 14 Athletics teams, which amounted to all but his last three seasons. He managed 20+ wins seven times, and had 19 twice. League ERAs were low back then, but Plank’s mark was always better than the league average, and