September 26, 1949 ~ May 17, 2020

Born in: Burbank, California
Resided in: Littleton, Colorado

David Clift LeSueur was born on September 26, 1949 and raised in Burbank, California.  He was John and Dolores LeSueur’s first of four children:  David, Stephen, Diana (Bartlett), and Jeff.  As a boy, David’s next younger brother Steve aspired to be David’s rival.  Instead he became David’s closest life-long friend, after David’s wife Mary.  All their lives, Steve and David enjoyed disagreeing about baseball and politics.


David met Mary in December 1970.  He had recently returned from serving a mission in Belgium and France for the Church of Jesus Christ of Latter-day Saints.  His friends told her—because he wouldn’t have—that he was a high school All-American basketball player, that he entered Brigham Young University as one of a handful of students honored with the school’s top academic distinction, the David O. McKay scholarship, and that he was student body president in high school (because everyone else withdrew their names after his friends nominated him).  She tried to convince him to marry her and gave up.  Then he tried to convince her.  It worked. They married on September 3, 1971.


David earned a B.S. in Mathematics.  As David later often told his children, he could have played professional baseball.  He chose to become an actuary instead.  He then did what even Nobel laureate Milton Friedman could not do: he passed all the actuarial exams.  On his first try.


He and Mary have four children. David is the kind of father who attended all of his children’s games and competitions, played piano with his children on his lap, and wrote treasure hunt clues for their Easter eggs.  Stephanie (Price) inherited his athleticism and mathematical excellence.  He taught Carl to shoot free throws and to love The Beatles and The Beach Boys. John has David’s gentle kindness.  Amanda (Berns) learned to make the violin sing in duet with David’s piano.  (She also did David the favor of marrying a man who has an opinion on the integrity of the designated hitter rule.)  David taught his children that setbacks and heartbreaks are temporary, and the future always holds greater joy and more success than any present disappointment.


So fate had it that he would suffer from multiple sclerosis for the last twenty years of his life. But he took it on one day at a time. He could no longer play basketball, so he played tennis.  When he could no longer play tennis, he played more piano.  When he could no longer play piano, he typed out witty articles with humility, hope, and gratitude as a subtext.  When he couldn’t type, he dictated.  When that became too tiring, he told jokes to his grandchildren.  When telling jokes became too tiring he laughed at their jokes and smiled at their cute antics. He made it through those many years only with the determination of Mary, constantly at his side. Thanks to her devoted care he lived to meet fourteen of his grandchildren.


Now his challenges — punctuated with these joys — have come to an end.  He succumbed to the effects of MS on May 17, 2020. His family expects he now reaps the promise of surpassing joy, gorging on his mother’s peanut butter cookies, swapping commentary with his dad on any available sports reruns, and looking forward to the day he will be reunited with Mary and the rest of those he loves.


Memorial services and dedication of a park bench will be held at a future date that allows for gatherings.  Friends and family who so desire are asked to share memories in written or video form by sending them to or posting to the David C. LeSueur Memorial Facebook page (


The family requests that anyone wishing to make donations or send flowers consider donating instead to the David C. LeSueur Math and Physics Endowed Scholarship Fund at Brigham Young University.  Donations may be made by going to the link below or sending a check to the address below, with the name of the fund in the memo line:

LDS Philanthropies

Attn: Brent Sharp

1450 N. University Ave.

Provo, UT.  84604

memo line: David C. LeSueur Math and Physics Endowed Scholarship Fund

Memories Timeline


  1. We should have known that David’s obituary would be just as smart and witty as he was! What a pleasure to read! And what a joy it was to have known him!

  2. Dave was such a great friend. We had some great family outings together while living in the Los Angeles area and in Littleton. He will be missed by everyone. Sending love and heartfelt condolences to Mary and the family. He was an awesome piano player and a great friend.

  3. Dave was a great mentor during my time at Towers Perrin. I really enjoyed his tutelage and good humor. He was a really great person.

  4. I didn’t know about David being an All-American Athlete, President of Burbank High School or a Presidential Scholarship recipient at BYU until I read his obituary. We attended the Sherman Oaks Ward with the LeSueurs in the 1980’s and my first baby Juliet was the same age as the LeSueur’s last baby Amanda. We had a play group and the rest of us were having our first babies so Mary with four children was the voice of experience.
    I knew David as father of a wonderful family and as a writer. I directed the Sherman Oaks Ward Roadshow in 1987 and David wrote some sparkling dialogue for the script. It got laughs. Or ward won first place in a competitive stake. There were other professionals helping with the roadshow but David’s dialogue stood out to me and I still remember lines he wrote 33 years ago.
    I realize now that I didn’t know about David’s outstanding achievements because of his humility. It seemed that family was most important to him and everyone could see that the LeSueurs were a great family. Two years ago, I attended a piano fundraiser for the University of Utah School of Music in Holladay, Utah and met David and Mary’s son John. We were in a gorgeous home and John lived in the neighborhood but had that LeSueur trademark humility. Like David’s writing, John made a lasting impression on me.
    David LeSueur had many sides to his genius and infinite angles of greatness. His talent, humility and family stood out to me.

  5. I knew David during our time serving the Lord in Belgium and France. His quiet leadership helped many of us during our time in the Language Mission Training center. Of course, he was is the advanced French group. He was one of six Elders I flew with to Brussel in November of 1968 and we shared a plane ride from New York to Salt Lake at the end of our mission. He was a good friend during those days and he never reacted to our dumb jokes about him being a Le Sueur green bean. I am not surprised to read of his determination, endurance and faith as he endured to the end of his mortal probation. I pray that God’s love and comfort enfolds his dear wife and family in these times. I find comfort in reading Alma 40:12.

  6. David and I served together in France and Belgium on our missions and he was a great human being. I always admired and liked him a lot. So sorry to hear of his passing. All my love to his family. He was a wonderful man.


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