May we also suggest our article "Ace Books Controversy" in The J.R.R. Tolkien Companion and Guide: Reader's Guide, which necessarily includes an account of publishing the first American edition of The Lord of the Rings.

Wayne & Christina

Thanks for all your help and suggestions everyone! I will pull my companion and guide off the shelf (Thanks Findegil)

I had thought about the Frisby articles, I need to get my hands on the back issues.
The Proceedings article, I had forgotten about so thanks for reminding me.

I have several sets, from the 50's -60's but certainly not all printings. Any other suggestions are appreciated!