Derek was born Aug. 31, 1991, in Provo, Utah, the son of Jason D. Walker and Cynthia (Cindy) Wilson. He attended elementary school in the Moscow School District and then in Minidoka County School District. Derek attended East Minico Junior High and his freshman year of high school at Minico High School before moving to Fairfield, Idaho, where he attended and graduated from Camas County High. Following high school, Derek was accepted to Brigham Young University in Provo, Utah, but deferred his acceptance to serve a full-time mission for The Church of Jesus Christ of Latter-day Saints. Derek was called to serve in the Texas-McAllen Mission and entered the Missionary Training Center in Provo, Utah, on Sept. 29, 2010. Derek arrived in McAllen, Texas, on Dec. 1, 2010, and served in the communities of Brownsville, La Joya and Weslaco, Texas. Derek loved mountain biking, snowboarding, snowmobiling, football, basketball, track and the outdoors. He worked for several summers as a farmhand in Alta, Wyo. In 2010, Derek worked for the U.S. Forest Service on a YCC crew in the Fairfield Ranger District. Derek is survived by his parents, Jason and Cindy Walker of Fairfield, Idaho; his brother, Austin Grant Walker who is attending Brigham Young University in Provo; his sisters, Kylie Grace Walker and Alison Chloe Walker; and his youngest brother, Tyson David Walker, all of Fairfield, Idaho. Derek is also survived by both sets of grandparents, David and Carolyn Walker of Rupert, Idaho, and Grant and Sharol Wilson of Alta, Wyo.