I love reading about Lefty Grove. He was one bad motherfucker.
In addition to being the ace of the Philly staff, he was often their top reliever, back in the pre-modern bullpen days. There wasn't a "save" stat back then, of course, but he made over 150 relief appearances (out of 600+ overall games pitched), finishing someone else's start in 123 of those bullpen stints. He sure as hell wasn't a situational Lefty; at least in the modern sense.
I became obsessed with baseball in '68 also. Became a big Tigers fan that year. With all the imposing, powerful guys setting pitching records that season, my favorite hurler was Mickey Lolich, who looked like he drove a donut truck, maybe. Check out some of his innings pitched totals sometime; and he wasn't a soft-tosser, either, or throwing knuckleballs.