I just started playing a 70's league with Ken Griffey, and he was hit-by-pitch twice in the first game. Upon looking at his cards, I noticed that only his 1974 card had any HBP entries, so it must be that card. Possible cards are 1974-1978.
Out of curiosity, I looked up his stats (
http://www.baseball-reference.com/players/g/griffke01-bat.shtml ), and was surprised to learn that he had one HBP in '74, '75, and '76, and none in '77 & '78, but the '75 - '78 cards do have any HBP outcomes, at all.
I found this interesting...any ideas?