Harvey is still alive, hard to believe but he is only 82. Looked older than that at his HOF speech. All I could find during a quick search was that Bill Kinnamon was the oldest at 91 until he passed away last year.
Also I know that only one Negro League umpire is still alive, Bob Motley. I knew that because I found his facebook page not long ago and that is how he is introduced.
http://www.facebook.com/pages/Bob-Mo...631446?fref=ts
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Please check out my books on baseball history. They include the bio of star second baseman Dots Miller. A book featuring 20 Moonlight Graham players who got into just one game. Another with 13 players who were with the Pittsburgh Pirates during the regular season, but never played a game. There's also one about 27 baseball families, as well as a day-by-day look at the worst team in Pittsburgh Pirates history. All five can be found here:
https://www.amazon.com/stores/John-D...hor/B0DH87Q2DS