If I have time I'll do these from time to time, adding additional hints if no one gets it.
An NES RBIer, began his career with Oakland in 1975 and last played in 1992. He was born in New Jersey and turned 50 this year. Hit only 49 HRs in his 17 year career despite playing primarily hitter positions (1B, 3B, and OF).
Not Davey Lopes
Davey Lopes?
Not Lopes, I'll notify missed guesses in the initial post.
Denny Walling?
Phil Garner was the other one I would guess, but he is older and hit more HRs, I think.
Nice work Defen, Denny Walling is correct.
Saw the 13 dingers in his RBI year and figured he had more...
Of course when I saw the low homer total in 17 years I immediately went to the Houston pages...