Helen,   I was deeply shocked to hear of Denny’s death.  A classmate, John Carlson sent me a copy of his obituary and I am still stunned. Had he been sick?  My heart goes out to you and the kids.
Denny and I were Sigma Chi roommates in college.  I was pre-dent and he was engineering.  We had some incredible, funny, and wild times.  We would pal around in Portland/Lake Oswego area in the summer.  I can honestly say that it was a miracle we survived those years as I am sure he has told you. Well, again my sincere sympathies to you all and Dennis will always be remembered by me.
Tom  Merchant