Mulder was born in Waupun and began a long and distinguished career as a builder of Wisconsin hockey by helping to raise the necessary money to build Waupun’s indoor hockey arena.  Once plans were completed, Mulder became involved in all facets of the construction of the facility.  After completion of the building and the purchase of compressors and an ice resurfacing machine, Mulder undertook the responsibility for the operation of the compressors and other equipment.  For over 20 years, Mulder checked compressors  and ice conditions at 5 a.m., before he went to work.

In 1981, Mulder became a member of the Waupun Hockey Association Board of Directors and served as president of the organization for nine years.  He was instrumental in improvements and renovations in the Waupun Arena, and in the establishment of a figure skating program for area children.  Mulder served also as a coach, rink manager and in fund raising for the Waupun Association.  He  worked to promote the Senior Class Tournament since its inception and has helped to mold it into a statewide quality event.  For his efforts, he has been given the Distinguished Service Award and the Father/Son Award.  Mulder  assisted in the establishment of the hockey programs in West Bend, Washington County and Sheboygan.