Dennis Butterfield-Halbedel has contributed to UM-Flint for forty-five years and counting within Facilities and Operations. (Photo by UM-Flint) May 13, 2020 675 × 450 UM-Flint celebrates and honors staff for their contributions Dennis Butterfield-Halbedel has contributed to UM-Flint for forty-five years and counting within Facilities and Operations. (Photo by UM-Flint)