Two Great Cubs - One Card

I was looking through some of my League Leader Cards from my “old” collection and found this gem. The usual superstars appeared quite often; Mays, Aaron, McCovey, Clemente, Rose, Robinson, Yastrzemski etc. I even found a few Cubbies appeared throughout the years. But this 1969 card (Topps # 4) features two Cubs, that’s right Santo and Williams on the same League Leader card, for RBI’s in 1968, tied for 2nd in the league with 98 (behind Coveys’ 105). Was there ever another year that two Cubs appeared on the same League Leader Card ? Help me Cubs fans . . . help me league leader statisticians ?