He and his wife, Maureen, were the parents of four sons, Brad, Greg, Rolph, and Jay Dee.
After graduation, Winterton toured with the Repertory Dance Theater for two years and with the Ririe-Woodbury Dance Company for eight years. He also participated in residencies in association with the Artists Schools foundation. In 1968, he began instructing dance at Brigham Young University. When he became Coordinator of the Dance Department, he formed the BYU Dance Company. From 1980-1984, he served as the Director of Young Ambassadors. He was also closely involved in Lamanite Generation, the precursor to Living Legends. In addition, Winterton served as Director of Sundance Summer Theater for ten years and Director of Summer Theater at Jackson Hole, Wyoming for three years.
Winterton passed away in 1984 in a tragic car accident.