I remember not long after I started this thread, someone posted a picture of Irv Young in another thread, that matched the image on the E90-1 card, only in reverse. In other words, the E90-1 is simply a reversed, mirror image of Irv Young. It is not Denton T. Young.
I found the thread. See the first post in the linked thread:
http://www.net54baseball.com/showthr...ight=irv+young
Steve