I just noticed today that Armory Arts in Pasadena, CA, USA just put in a pdf file containing the list of all the artists who contributed to this wonderful exhibition:

International Mail Art Exhibition
in Honor and Memory of
Judith A. Hoffberg
June 27 - August 22
Curated by Jay Belloli
In The Caldwell Gallery

http://www.armoryarts.org/exhibit.php

I am attaching the pdf file here (and also on the event page).

I was hoping to see who else contributed work to this exhibit.

Special thanks to Ms. Chandra Pok for all her hard work in compiling the complete list.