20th Air Force Association
http://www.20thaf.org

Official Home Page of the 20th AAF
http://www.powmiaff.org/20thAAF/index.html

The Wartime Memories Project
http://www.wartimememories.co.uk

Three comprehensive B-29 pages with many, many links
http://b-29.org

http://www.xmission.com/~tmathews/b29/iright.html

Vic Morris of the 873rd, Zweifel's crew, POW story
http://www.bnd.com/2008/05/11/336770/our-war-shiloh-pow- survivor-endured.html?story_link=email_msg