Paul Houston Smith, beloved husband, father, and grandfather, was born on July 27, 1936 in Bishop, Inyo County, CA. He passed into Heaven on February 13, 2018 in Loveland, Larimer County, Colorado. Paul and his family moved to Whittier, CA in 1940, where he attended Whittier Public Schools and graduated from Whittier High School in 1954. Always an avid outdoorsman, he was very active in the Boy Scouts in his school days. He had a lifelong love of the wilderness and backpacked, camped, and hiked his entire life. After graduating high school, Paul furthered his education in the electronic engineering field, graduating with an EE degree in 1966 from California State University of Los Angeles. He spent thirty years at Beckman Instruments (which became Babcock Displays) in California. One of the highlights of his career was his work on the NASA Viking Lander Project. This earned him a patent, as well as recognition from NASA for his innovations and participation in the Viking Gas Chromatagraph- Mass Spectrometer Development Team. He retired in 2002 from the engineering field and moved from La Habra, CA to Loveland, CO. Paul met his wife Catherine "Cathi" Agnew on the Pima Indian Reservation in Arizona on a Presbyterian missions trip in 1956. They were married September 7, 1958 in Pasadena, CA. In retirement, Paul was an active part of the community. As a member of Resurrection Fellowship Church, he served for many years as an usher and mentor to other men. He participated in Bible Study Fellowship for twelve years. He served on the board of the Homeowner's Association, as well as donating countless hours to assisting others with their resumes and professional development. He worked with the Poudre Wilderness Volunteers for several years. He was a long-time member of the Larimer County Genealogy Society. Paul had a lifelong love of music and attended community performances on a regular basis. Paul is survived by his wife Catherine (Agnew) Smith; his son Mark and wife Cindy, and their son Andrew; his daughter Holly Brubaker, her husband Todd Brubaker, and their children Sarah and Katie Brubaker; and his son Scott, his wife Andrea, and their children Noah, Eden, and Samuel, as well as numerous nieces and nephews. He is also survived by his sister Bettye (Smith) Geest of Tuscon, AZ. A celebration of Paul's life will be held Saturday, February 17 at 10am at Resurrection Fellowship Church, located at 6502 E. Crossroads Blvd in Loveland, CO.