- Date Of Birth: October 19, 1934
- Date Of Death: April 23, 2017
- State: Colorado
William Allen Kellnhofer, Sr. was born in Taylor County, Wisconsin on October 19, 1934 to Charles L. Kellnhofer and Laura (Harper) Kellnhofer, and passed away in Denver, Colorado on April 23, 2017 at age 82. He is survived by his wife, Mary (Kohnhorst) Kellnhofer, his children, Judy Laflin and her husband William, William Kellnhofer, Jr. and his wife Lanna, Joseph Kellnhofer and his wife Amber, and Ron Kellnhofer. He is also survived by thirteen grandchildren, William Kellnhofer III, Kevin Gallagher, Joseph Kellnhofer, Jason Gallagher, Matthew Gallagher, Charlie Kellnhofer, Eric Gallagher, Victor Kellnhofer, Christopher Gallagher. Adam Lynn, Mitchell Lynn, Patrick Laflin and Merideth Laflin, fifteen great grandchildren, Anthony Yu Gallagher, Lucas Gallagher, Charlotte Price, Adrielle Laflin, Everett Gallagher, Lucy Gallagher, Emma Gallagher, Sara Rose Gallagher, Lyla Gallagher, Jenna Gallagher, Zane Laflin, Hanna Gallagher, Kayden Kellnhofer, Joey Kellnhofer, and Otto Kellnhofer, sisters and brother, Pat Sward, LuAnn Grube, Bonnie Lipprandt, Ted Kellnhofer and his wife Shirley, sister-in-law Bonnie Andres, Dorothy Eckes and her husband Frank, Don Kohnhorst and his wife Mary and Jim Kohnhorst. William was preceded in death by his sister Lea Emmerich, brothers, Vernon Kellnhofer and Donovan Kellnhofer, brother-in law Karl Kohnhorst, and sister-in-law Sharon Kohnhorst.