Terril was born in Butte, Montana, on March 10, 1944, the first born to Erwin and Janet Christensen. In the coming years, siblings Walter and Pam joined the family in Dillon, Montana. Terril was involved in many performing arts activities until she graduated from Beaverhead County High School in 1962. Her love of performing continued to the Pasadena Playhouse where she studied theater arts until 1965. Terril was an independent woman and spent her 20s touring the country with the “Al Bello and Mapes Fun Capers Show” and “Bill Norvas and his Sunshine Generation.” From 1975 until 1980 she owned and ran “Alfalfas,” a whole foods restaurant, in Las Vegas, Nevada. While in Las Vegas, she reconnected with Mike Atkins from her hometown of Dillon and they married in 1978. They moved to Salt Lake City in 1980 and expanded their family with Michael John Jr., followed by Katherine Estelle in 1983. Terril was active in the community and ward, serving in various callings and even having a children’s dance studio where she taught lessons.