Jack Leond Halvorsen

27 July, 19269 March, 2021

Jack Leond Halvorsen passed away March 9, 2021 in Salt Lake City, Utah. He was born to Joseph L. Halvorsen and Edna Mary Foster on July 27, 1926 in Salt Lake City, Utah. He attended South High School and the University of Utah where he completed an electrical engineering degree. He received a master’s degree from Stanford University with a control systems emphasis. On March 5, 1951 Jack married MarGene Poulson Halvorsen in the Salt Lake Temple of the Church of Jesus Christ of Latter-day Saints. Jack will always be remembered for his kindness, caring, infectious smile and bear hugs. He was a natural leader and was excited to teach and share his many interests with others. He was a dedicated youth mentor and was involved for many years as a leader in the Boy Scouts. He was always interested in learning about the world around him and was constantly and aggressively seeking knowledge throughout his entire life. Jack was an avid snow and water skier, windsurfer, mountain biker and mountaineer. He loved being in the wild and enjoying the beauty of God’s creations. He was a loving and supportive husband, father, grandfather and great-grandfather. At the tender age of 16 Jack moved to San Francisco to be trained as an aircraft mechanic where he worked on large cargo and passenger sea planes. This led to service in the Navy where he continued to maintain and repair large amphibious aircraft. He later joined the U.S. Army Air Corps which became the U.S. Airforce. There he began his training and study of guided missile systems. Jack was a gifted and accomplished engineer. He was heavily involved in the early stages of development of guided missile technology which enabled later space travel and exploration. At Montek, Electro Controls and culminating at Evans & Sutherland Computer Corp., his contributions were a driving force in creating innovative and ground-breaking advances in his field. Jack was active in the Church throughout his life and served diligently in many church callings. He served his first mission in Hawaii as a young man where he obtained permission for he and his companion to become the first missionaries to serve at the leprosarium in Kalaupapa on Molokai. He later returned to the islands to serve a 12-month mission with his wife in the Hawaii Honolulu Mission where he served in the Information Technology Department at the Polynesian Cultural Center and the Laie Temple. He and MarGene also served as workers in the Salt Lake Temple for two years. Jack often shared his strong and powerful testimony and loved and served the Lord right up to the very end of his life. He is survived by his children: Eric (Nancy) Halvorsen, Chris (Terri) Halvorsen, Mark (Lorie) Halvorsen and Greg (Cathryn) Halvorsen; 17 grandchildren and 19 great-grandchildren. Jack was preceded in death by his wife MarGene Poulson Halvorsen; his parents; his siblings: Donna Halvorsen, Darlene Lovato, RaNae Adamson, Ronald Halvorsen, Lois Halvorsen and Lorraine Halvorsen; and his grandson Trevor Richard Halvorsen. Funeral Services will be held Saturday, March 20, 2021 at 11:00 a.m. at the Mount Olympus North Stake center located at 4176 South Adonis Drive, Salt Lake City, Utah. Due to COVID safety concerns the service will be limited to family members only. We cordially invite all to attend the service by copying and pasting this link into your browser Viewings for family and friends will be held Friday, March 19, 2021 from 6:00 to 8:00 p.m. at the Wasatch Lawn Mortuary located at 3401 South Highland Drive, Salt Lake City, Utah, and also one hour prior to services at the church. Interment will be at Wasatch Lawn Memorial Park. To leave condolences for the family please visit


  • Eric (Nancy) Halvorsen, Son
  • Chris (Terri) Halvorsen, Son
  • Mark (Lorie) Halvorsen, Son
  • Greg (Cathryn) Halvorsen, Son
  • Jack is also survived by his 17 grandchildren, 19 great-grandchildren and many other family members and friends who will cherish his memory.


  • Viewing

    Friday, 19 March , 2021

  • Private Family Service

    Saturday, 20 March , 2021



Jack Leond Halvorsen

have a memory or condolence to add?

Reed Haslam

20 March 2021

I was early in my career when I started to work for Jack in 1984 at Evans & Sutherland. Over the next 5 years, he was a great mentor for me, teaching me things like, "Power can come from a position, but can also come from knowledge."

I traveled more with Jack than at any other time in my career. We made twice-annual visits to Digital Equipment Corporation in Boston as well as several trips to the Silicon Valley, including one on the afternoon of the Challenger disaster. The time spent with him gave me a good foundation for the rest of my career, for which I will always be grateful.

Kim Ostler

20 March 2021

Dear Halvorsen Family I have been friends with Jacks son , Mark for twenty five years. We both work and serve the Riverton Arts Counsel Jack became well known to me and all of us who serve on the Arts Counsel. He always came to every show that he physically could. He was always so generous with his praise and love and he was so loved by everyone. He will be so missed. He is Marks hero and if you ever met Jack you knew why. He was an amazing, talented man. You’re all in my prayers. He’s loss is a huge loss

Jim Low

19 March 2021

I remember Jack as a young man in scouts. He taught us many valuable lessons. I loved his laugh and his big personality. I only have great memories of Jack. He will be missed but never forgotten.

Gordon hurley

19 March 2021

So sad to hear of Jack's passing. I worked with Jack at E&S for close to 15 years, he was often my thoughts. I have a lot of positive memories of Jack. The first mental image I have of him is that great big grin he would get he saw you. He could be at the end of the hall and would almost run to shake your hand and say hello. He showed genuine joy every time ! I don't remember him having a down day. My first knowledge of Jack was on my first day of work at E&S in 1981. I hadn't met him yet but sure wondered who he was, because ... I learned the company had just invested in some new software tools to design very large scale integrated circuits and Jack had just begun teaching a team of senior people how to use them. I was excited to get started in my new job but for several weeks the halls were empty and the people I needed to take direction from were in the class. I was bored looking at the walls and very happy when the class ended. Another memory of Jack is of him frequently taking his team out for activities such as windsurfing at Deer Creek. Now we know he was ahead of his time as that kind of team building and down time has become common-place today especially in the Hi-tech world. For a few years prior to his retirement our offices were nearly next to one-another, I was fortunate to get to know him quite well during that time. Jack leaves an impressive legacy, he will be missed.

Angelina Sofia Balken

19 March 2021

When I was 15, I was friends with one of Jack's sons. One day, while at their home, Jack came in the room. I remember him standing there with bright, blue eyes and a kind smile, as he asked his son, "Who is this gorgeous, young lady?"
He seemed like such a warm soul and caring father, as I am certain he was.
So sorry for loss~

Lance Kocherhans

16 March 2021

I was with Jack as a young scout working on my eagle when I summited Mount Olympus. What a great day and feeling. I loved both your parents so much. I know they have had a joyous reunion.

Rod Olsen

14 March 2021

I worked under Jack @ E&S.... my memory of him includes him passing me my Christmas Turkey every year. I never saw him in a bad mood...he was always smiling. I offer my condolences to the family but knowing he is continuing his work to help us all.

Jack RIP


Paul K Jensen

14 March 2021

Jack hired me in 1975 to work in Engineering on Displays. I traveled to Pasadena California with Jack to do Acceptance Testing on the displays and get them ready for customer acceptance back in the barracks on the U of U Campus. I then became Quality Manager at E&S until leaving the company in 1995.
Jack was well liked by all that knew him and was a big help in making E&S the success it was in those early days.
In later years we old timers got together for lunches at Anna's Restaurant and told stories of the good old times at E&S. Jack had many stories to tell along with everyone else. I think Jack enjoyed being there as much as we enjoyed associating with him.
Jack will be missed by all, especially us old timers. God bless you Jack and bless your family you have left behind. Paul K Jensen

Gary Starr

14 March 2021

Jack was an integral part of my career. As with many E&S employees, Jack hired me and supported me for many years in my roles managing manufacturing. Always kind, inquisitive about how things worked and how he could help me be successful, he also expressed interest in me personally. I was fortunate enough to have seen and associated with him in his senior years as well. The attached photos show Jack, Richard Leahy and Rod Rougelot, just 3 of the great legends at Evans & Sutherland.

Gary Starr

Boyd Paxton

14 March 2021

I have very fond memories of Jack. I worked with Paul Flandro, also a great man in Purchasing at Evans & Sutherland. This was my first real job out of college. I enjoyed working with Jack and the Engineering Team, Production, and all the other support groups at E&S. Definitely working with Jack and all those great people at E&S was a major highlight in my life. Best wishes to your family at this time.

Boyd Paxton

From the Family