David Allan Camp Lightbourn was born on December 20, 1944, in Phoenix, Arizona, to Virginia Jean Martin. In 1948, Virginia met and married William Roger Lightbourn. David always considered William his dad.

As a young child, David was a baby model and could be found in magazine ads and on packages of Weber's Bread. He was an active and energetic child who participated in school activities, scouting, ROTC, ballroom dancing, and shooting club. Throughout his childhood, David lived in various communities throughout Missouri and California.

As a young man, David was drafted into the United States Army and proudly served his country during the Vietnam War. He was stationed in Italy, where he served in the Military Police. David deeply loved his country and was proud to be a veteran throughout his life.

After completing his military service, David returned to California and began working at a local grocery store. He also attended college, where he studied Criminal Justice.

On February 14, 1970, David joined The Church of Jesus Christ of Latter-day Saints. A year later, he met the love of his life, Joyce Christensen. They were married for time and all eternity in the Los Angeles Temple on December 29, 1971. Nine months later, they welcomed their first child, Jana, and five more children soon followed.

David taught his children the importance of family, responsibility, and patriotism. He also made sure they learned practical skills, including how to drive and safely handle firearms.

Throughout his career, David worked in security and personal protection, then as private investigator owning his own business for many years, and later specialized as an insurance fraud investigator. He was dedicated to his work and loved what he did.

David enjoyed scouting, serving in various church callings, spending time with his beloved wife, and family. In July of 2015, during a short trip to Utah, David was hospitalized. His children realized it was time for their dad and mom to retire. David and Joyce made Utah their home. They loved being close to most of their children and grandchildren.

In December 2021, David and Joyce celebrated 50 years of marriage together. Just weeks later, on February 1, 2022, Joyce passed away. David missed her deeply and often told his children that he felt he should have gone first.

During the last few years of his life, David enjoyed spending time with family and getting to know many new friends at Charleston Senior Assisted Living. He especially enjoyed sharing meals with friends and visits from his children and grandchildren.

David passed away peacefully in the early morning on Father's Day, Sunday, June 21, 2026 with his daughter Julie and Granddaughter Kylie by his side.

He was preceded in death by his beloved wife, Joyce; his parents; and his twin sisters, Prudence and Patience, who died in infancy.

David is survived by his younger sister, Lauren Christie Muti (Mateo); his six children, Jana (Chris) Knittle, Jeanne (Matt) Stricklin, Jenifer (Matthew) Conrad, Julie Youngblood, Jessica Arman, and David R.D. Lightbourn; 23 grandchildren; and 6 great-grandchildren.

A viewing will be held at Anderson & Sons Mortuary in American Fork, Utah, on Wednesday, July 1, 2026, from 8:30 to 9:30 a.m. Following the viewing, a graveside service will be held at 10:00 a.m. at the Utah Veterans Cemetery & Memorial Park in Bluffdale, Utah.

In honor of David's deep love for his country, his family invites all who attend to wear red, white, or blue.

David's family would also like to express their heartfelt gratitude to the staff of Charleston Senior Assisted Living and ICare nurses and hospice team for their compassionate care and support during the final years and especially the last weeks of his life.