Very sad to learn of RIG's passing. In 1980, when I was at UBC, I would hang out with him and hear his stories and discuss all kinds of philosophy. Just about then, he wrote a wonderful piece in the Scientific American on quantum logic.
Tamar Gendler writes that he graduated from Cambridge University, did his National Service with the Royal Artillery, moved to Canada to teach at the Shawnigan Lake School, and then found himself at the University of British Columbia, where he worked with my friend and co-author, Ed Levy. RIG (his nickname for his initials) taught at Toronto, Princeton, Yale, and the University of South Carolina. He was loved and will be missed.