Justin Shirley Clark

He was born April 10, 1934 to Jonathan Shirley Clark and Florence Geneve Rasmussen in Logan, Utah. The 3rd of 7 children, Justin was fortunate to gain an additional 7 brothers and sisters. He loved his family and took his responsibilities as a son and brother very seriously, and worked at having a personal relationship with each member.

Justin was raised in a family who loved music. As a boy he had the privilege to learn the trumpet and continued to play throughout his life, including in the West Valley and Murray symphonies. He passed his love of music on to his children and gave each of them the gift of instruments, providing a home full with pianos, clarinets, violins, trumpets, a marimba, bass, trombone, viola, flute, guitar, organ, drums, baritone and french horn. As a family they formed a full SATB choir, regularly singing around the piano. He loved classical music and was often humming a trumpet concerto, Brahms, or Rachmaninoff.

Justin honorably served his country in the Marine Corps during the Korean War.

Justin valued a good education. While completing his doctorate in Biophysics from the University of Utah he enjoyed teaching Thermodynamics to nursing students at Weber State. He was a professor in Biophysics at the University of Utah and many of his graduate students were very successful in their fields and appreciate his mentorship. Whether his children and grandchildren liked it or not (and they did not), he tutored them in math and science and never accepted "I have no idea" as a response. ("Could it be St Petersburg? No? Well then it sounds like you do have some idea.") Justin was the founder of Medical Physics and continually used his knowledge and talents to improve numerous health issues. With his colleagues, Justin developed procedures to save babies with RDS, a respiratory condition in infants that was then fatal. His contributions to science and the medical field prevented many other families from going through the grief and loss he experienced first hand after losing his 3rd child, Douglas, born 5 weeks premature.

Justin was a member of the Church of Jesus Christ of Latter-day Saints. His most cherished church assignments were home teaching and serving in the baptistry of the Salt Lake and Jordan River temples.

Justin is survived by his wife Barbara Clark; his children Barbara (Roger) Stout, Burton (Jeanette) Clark, Diane (Steve) McLean, David (Crystal) Clark, Laura (Les) Westberg, Bill (Myrna) Clark, Christine (Brian) Mickelsen, Jeannette (Clark) Shaw, Howard (Trina) Clark, Catherine (Gabe) Hammond, Richard (Sarah) Clark, Mary Davies, Justin Clark, Jonathan Clark and Eldon (Pilar) Clark; sisters Florence Smith and Merrilynn (Carl) Jensen; brothers Gary (Judy) Clark, John (Tami) Clark, Jerel Clark, James (Jennette) Clark and Jay (Lynda) Clark; brother-in-laws Glenn Eames, Jack Lambson, and Dale Fitzgerald. At the time of his passing, he had 71 grandchildren and 75 great-grandchildren. He is preceded in death by his sons Steven and Douglas Clark; grandchild Joshua McLean; brother Weldon Clark, sisters Marjorie Ridgeway, Marlene Eames, Jean Lambson, Bonnie Peck, and Elna Clark; sister-in-law Audrey Clark; brothers-in-law Hollis Smith, Richard Stout and Gary Ridgeway; and the mother of his 17 children, Maureen Stout Eldredge.

A funeral and viewings will be held in his honor as listed below as his 175+ family members relish in this time together, united in their love of music, and holding fast to the knowledge of the Great Plan of Happiness and the healing power of the Savior, Jesus Christ. “Wherefore, fear not even unto death; for in this world your joy is not full, but in me your joy is full.”