I don't even know what to say. I'm very impressed with this list. By definition, can't say I've heard of any of the players. But they all got their 15 minutes, so good for them.

v3

The only one I've ever heard of is Tim Christman.  Only because he from my neck of the woods in Upstate New York.  I was aware of Jesse Hudson, but only because I collect Mets.

I know of Jesse Hudson because he's one of the tough autographs I needed to get to complete the '69 Mets. There were a number of tough autographs from that team. You can see the Hudson signature along with the rest on my 1969 Mets autographs on my website.

http://letsplaytwo.weebly.com/1969-new-york-mets.html

The only person I know on this list is Mike Schultz because he played in Japan.

The first name that always comes to mind is Walter Alston.

Larry Colton wrote an article on his one big league game and what happened after that -

https://vault.si.com/vault/1977/09/26/this-hurlers-career-ended-when-he-left-his-fastball-in-san-francisco

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Two-for six, at least Elvio Jimenez can say he is a lifetime .333 hitter!  He hit for a high average in the minors, but not for a lot of power.  The game he played in was one day after the Yankees clinched the '64 pennant ... the starting eight players were all bench players and rookies -

https://www.baseball-reference.com/boxes/NYA/NYA196410040.shtml

Curtis Brown, one game for the 1973 Expos.

One of the greatest "one game wonder" was John Paciorek who played for the Houston Colt 45's on September 29, 1963.  He went 3 for 3 with 2 walks 3 RBI's and 4 runs scored. His earliest card was: 1983 Fritsch One Year Winners #95