I found out more than a year later, but Mark has passed away in Feb. 2014. It was not unusual to go for long periods without communications between us and I was concerned, but not enough to contact his family directly, and then I found this:
http://www.legacy.com/obituaries/name/mark-rogers-obituary?pid=1000000169751840
I will keep this website up as long as I am able but I have had no contact with his family and may be forced to shutdown without notice.