I've already taken my guess at identifying all four Afro-American players in the 1968 Corning team photo. Either I'm wrong about one of the players or John Nelson isn't in it. If he is in it, my best guess is that he is the fellow in the bottom row instead of Drew. John Nelson was 5'10" in height when he played. The photo comes from the Daily News-Post (Monrovia, CA) of May 24, 1968. He was in Duarte High School at the time.
https://www.baseball-reference.com/r...d=nelson001joh