Provo — Boyd Demar Datwyler, our beloved “Grandpa Boyd”, passed away on April 30, 2026, at the age of 92.

Boyd was born on April 8, 1934, in Logan, Utah, to Christian Fredrick Datwyler and Selma Victoria Holjeson. He was the seventh of eight children.

Boyd spent his Cache Valley childhood fishing, hunting, waterskiing, skiing, and exploring the hills and trails around Logan on his bike with his siblings and friends. He attended Adams Elementary School and graduated from Logan High School in 1953.

Following graduation Boyd enlisted in the U.S. Army. From 1953 to 1955 he was stationed in Texas and Germany. Upon returning home he enrolled at Utah State University, where he pledged Sigma Chi Fraternity, earned his Bachelor of Science degree in Landscape Architecture, and met his wife, Janice Allred. Boyd and Jan were sealed in the Logan LDS Temple on December 20, 1957. Together they built a life, a family, and a love that stretched nearly seven decades.

After graduation, Boyd and Jan moved to Provo, Utah, where Boyd began his career as a Landscape Architect for the planning department at Brigham Young University. His designs shaped the BYU campus and earned national recognition. His influence extended to the campuses of BYU-Idaho and BYU-Hawaii, and he designed municipal parks — none more cherished to his family than Provo’s Rock Canyon Park, known among his grandchildren as “Grandpa’s Park.” Boyd took deep joy in watching his projects grow and flourish, and his reverence for trees and all things that can be planted and tended to is a trait inherited by his children and grandchildren alike.

Boyd was a devoted member of The Church of Jesus Christ of Latter-day Saints, serving faithfully in many callings throughout his life. He was a committed home teacher whose ministering continued well into his later years. His love for the outdoors made him a natural and beloved leader for the youth of the Edgemont 8th Ward. His discipleship was never loud and his love for the gospel was demonstrated in his consistency, his loyalty, and always showing up.

His time spent exploring the rivers and mountains of Cache Valley during his youth shaped his adult life. His passion for skiing began on Old Main Hill at Utah State with Bernal slats strapped to his feet. He flew down that first slope and never looked back. For the rest of his life, winters meant ski trips and countless Saturdays at Snowbird — a tradition he kept well into his late eighties. He loved waterskiing just as much as snow skiing, and few things gave him more joy than a trip to Lake Powell with family and friends. His passion for fishing began in the streams near Logan and eventually took him to Alaska, Costa Rica, and his local favorites — Strawberry and Starvation reservoirs. And he golfed every chance he had. His enthusiasm for the game was genuinely contagious, drawing in friends, sons-in-law, and grandchildren and sending him around the world in search of the next great course.

He was fiercely loyal to his Utah State Aggies — until his career at BYU turned him into a devoted Cougar fan. He loved his blue teams, and spent untold hours in stadium seats cheering them on.

But of all his many loves, none surpassed the love he held for Jan and for his family.

Boyd is survived by his daughters Carey Morley, Sue Ann (Nate) Jones, Heidi (Kent) Carlson, and Shauni (Jeremy) Keith; his grandchildren; and 23 great-grandchildren. He is preceded in death by his parents, his wife Janice, his infant daughter Terri, his son Craig (Wyn), and his son-in-law Brad Morley.

We would like to express gratitude to all those who lovingly cared for Boyd.

Services: A viewing will be held on Saturday, May 9, from 9:30 to 10:45 a.m. at the LDS chapel located at 3050 Mojave Lane, Provo, Utah. A funeral service will follow at 11 a.m.