I did not know Dennis well, but the times I met with him regarding work items led me to respect his knowledge and opinions. He was always ready to assist however he could and demonstrated that to our family by managing to sort out the mess, of our home computer one evening, which was no small feat. The wonderful tributes to him are no surprise to us. He will be missed. To Dennis's family on behalf of my family, I wish to extend my deepest regrets at your loss.