Dennis graduated from Deuel Co. High School in 1960 and entered the University of Nebraska Teachers College. He married Cherie Thies, also from Chappell, in 1965 and began a career teaching math in the Lincoln Public Schools. They had one child, Amy Frederick, and one grandson, Harold Sorrell. Dennis retired in 1998.
Dennis enjoyed taking OLLI trips, performing with the OLLI Radio Active Players, playing golf, attending University baseball games, and his favorite activity – singing with the Playhouse Greasers.
Dennis is survived by his wife Cherie; daughter Amy Frederick (Christian Gould); and brother, John (Sara) Frederick. Preceded in death by his parents, and sisters, Sharon Paro and Connie Kier.
A Celebration of Life is scheduled for 10:00 am Friday, May 16, 2025, Aldersgate United Methodist Church, 8320 South Street.
Memorials in lieu of flowers, to Aldersgate United Methodist Church.