Duke was preceded in death by spouse Shirley Knoll; parents Virgina Covilla and Bill Knoll; and multiple aunts and uncles. He is survived by his children Lorie Heller (spouse Curtis Heller) and Todd Knoll (spouse Nicole Knoll); five grandchildren Tanner Heller, Courtnie Heller, Makayla Knoll, Kennedy Knoll and Sawyer Knoll; and his siblings Ronald Knoll and Karen Knoll.
Duke and Shirley were married in Denver, Colorado on June 27, 1970. Amongst other accomplishments, Duke was proud of his membership in Teamsters Local 435.
He will be truly missed by all whose lives he touched.
Fond memories and expressions of sympathy may be shared at www.olingerhighland.com for the Knoll family.
