Dennis passed away June 20, 2023 in Murray, UT, peacefully and surrounded by family. Dennis was born in Salt Lake City in 1949 to Robert Hancock Wanlass and Virginia Lee Swofford Wanlass. He married his high school sweetheart, Karen Sue Peterson, in 1967. The ensuing years were spent earning his Bachelor of Science in Accounting at the University of Utah, earning and maintaining his CPA certification, travelling the globe for business and pleasure -- all while raising five children. He spent most of his life in Utah, with a few years spent living in West Virginia and commuting between Utah and Oklahoma. A stickler for detail, and an astute businessman, Dennis achieved success in various financial positions for Norton Christensen, Geneva Steel, Special Metals, Inc, and Tronox Corporation.\n\nDennis was a devout member of the Church of Jesus Christ of Latter-day Saints, holding numerous callings over the years. In 2015, Dennis and Karen were called to serve a mission at the Los Angeles Temple Visitors Center, a highlight of his retirement.\n\nSurvived by his wife, Karen Sue Peterson Wanlass, children Stacy Underwood, Stephanie (Scott) Jensen, Robert “Denny” (Jennifer) Wanlass, Lindsay (Travis) Young, and Julie (Matthew) Hemmert, as well as 17 grandchildren (including in-laws) and 2 great-grandchildren.\n\nPreceded in death by his parents Robert and Virginia Wanlass, and sisters Linda Gates, Laura Medici, and Cindy Kelly.\n\nFuneral services will be held on Monday, June 26, 2023 at 11:00 am at River Ridge 7th Ward Meeting House, 10124 S. 1300 W., South Jordan, Utah. A viewing will be held the night before, Sunday, June 25, 2023 from 5:00-7:00 pm at Jenkins-Soffe South Valley Mortuary, 1007 W. South Jordan Parkway, South Jordan, Utah. A viewing will be held prior to the service at the church from 10:00-10:45 am. Interment will be at Riverton City Cemetery, 1500 W. 13200 S., Riverton, Utah.\n\nThanks to the staff of IMC Neuro ICU and Hospice Care for their tender and tireless care.\n\nIn lieu of flowers, donations can be made to the LDS Church Missionary Fund, philanthropies.churchofjesuschrist.org.