When Did John D. Voelker Die?

John Donaldson Voelker, also known by his pen name Robert Traver, was a noted lawyer, author and fly fisherman from the Upper Peninsula of Michigan. Born and raised in Ishpeming, he later attended the University of Michigan Law School. His early professional career was as an attorney and county prosecutor in Marquette County. Voelker was also appointed to the Michigan Supreme Court by Governor G. Mennen Williams in 1957.