Back in 2011, I scored a '36 Goudey Greenberg pedigreed to come from the Lionel Carter collection. Here's a link:
http://rustywilly.com/largecards/HOF...enbergHank.htm
If you scroll down the page, you'll find pictures of articles/letters written by Mr. Carter. I picked the letters from another collector, who corresponded with him, and I enjoy sharing them with other card enthusiasts. Hope you find them interesting...