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. He is best known as the author of the novel Anatomy of a Murder, published in 1958. The best-selling novel was turned into an Academy Award-nominated film of the same name—directed by Otto Preminger and starring James Stewart—released on July 1, 1959. Duke Ellington wrote the music for the movie. It is critically acclaimed as one of the best trial movies of all time.

Ishpeming is a city in Marquette County, Michigan, United States. Located in the Upper Peninsula, the population was 6,140 at the 2020 census, less than it was in the 1950s and 1960s when the Iron ore mines employed more workers. A statue of a Native American figure, erected in 1884 in the small town square, is referred to as "Old Ish".