Well apologies for ths not being pre-war...
But HOFer Robin Yount had an older brother, Larry, who appeared in one game for Houston, September 15, 1971.
Larry had been called up from AAA Oaklahoma City on Sept 2nd. He'd sat on the bench... then was called on to pitch in that one game, the Astros were trailing the Braves 4-1 in the top of the 9th. Yount goes out to warm up on the mound, feels a twing in his elbow, considers ignoring it so he can pitch in his first game, but he doesn't and calls the coach, and he leaves the game. Since he was 'announced', he was 'in' the game, even though he didn't face a batter.
He didn't get another chance for the rest of 1971. He was with Houston's minors for 1972 and 1973. After spring training of 1974 he was traded to the Brewers, where he was briefly in camp with his little brother, Robin, before returning to the minors. He never got back to the big leagues. He's in the record books and stat sites with one game and a bunch of zeros.
No card of Larry, but I did write him in May of 2001 and got this signed 3x5.
