Wow, thanks for sharing. Very interesting.
As I was reading down your post, I was wondering "How many of these guys never appeared in a Major League game?" But, by golly, you had already answered my question.
There is an interesting Wikipedia page on "
Phantom Ballplayers" that mentions Harry Saferight and his 'Oh so close' time on the Pirates. Not sure if any others on your list show up in the Wikipedia article.
Thanks again.