Cody - Yes, William VanVorst was the first to kill a deer in Michigan during a Bow and Arrow Deer Season. That was 1937. Actually only 3 deer were killed during that season. Nels shot one of those first three deer. Nels also got a deer in 1938 and 1939, the only bowmen to bag a buck in each of Michigan's first three B&A seasons...
It should be noted that well before 1937, several deer were killed with a bow and arrow during the regular firearm seasons, which was legal.