I checked the website < heavybombers.com > when you first posted your message and found nothing other than what I already had. A contact of mine put me in touch with two former members of the 728th. Anticipating your response, I obtained a complete history of both the group and squadron. I heard no more from you so I discarded everthing. The website has a message board. Perhaps that will help. Also, the website offers a number of books for sale (which appears to be the principal function of the site).