Stephanie was born in 1949, as the oldest daughter (of 5 children; 4 girls, 1 boy) of Norman Duncan and Flora Miles. She grew up in Orem, Utah and attended high school there, excelling in sports, to include holding the discus throwing record in her high school region.
After high school, Stephanie attended Utah State University on a scholarship for several years, but irregularly due to illness which was finally corrected by surgery. After healing nicely from the surgery, she decided to go on a mission for the Church of Jesus Christ of Latter Day Saints (Mormon), where she honorably served a full term in the California South Mission for 18 months in the early 1970's.
Following return from her mission, Stephanie attended Brigham Young University to graduate in 1975 with a bachelors degree in Art Education. She soon got a job teaching at Bingham Junior High in south-west Salt Lake Valley, where she taught Art for 3 years while commuting from Utah Valley to her school teaching job in Bingham Canyon. It was at this time that she met Warren, while she was serving as the genealogy instructor in the same BYU student branch where he was attending also.
Warren was born in 1945, as the oldest son (of 5 children; 3 boys, 2 girls) of Warren Taylor and Amelia Wargoski and was raised in Rutland Vermont, where he graduated valedictorian from Rutland High School. He received a scholarship at Rensselaer Polytechnic Institute (RPI) to receive a BS in physics in 1967. Warren then went on to attend UC Berkeley (1967 to 1969) on a National Defense Education Act (NDEA) fellowship. A 1968 draft notice to serve in the Vietnam War interrupted his PhD program in physics (non-linear optics), which was completed in its entirety except for the research thesis, resulting in a Masters degree award prior to entering on active duty. Warren served 4 years active military service in the US Army (1969 to 1973; all completed stateside), 2 years as an enlisted man, and 2 years as an officer (Signal Corps), where he held the rank of Captain.
After Army duty, Warren served two years as a missionary for the LDS Church in the Tokyo Japan Mission, 1973 to 1975. He then returned to Berkeley briefly, before going on to Brigham Young University (BYU) in Orem, Utah, to obtain a Masters degree in statistics. It was during his studies at BYU that Warren met Stephanie Duncan at a Temple session in March 1977 from which time after a few dates and a brief courtship, he was enthralled enough to ask her hand in marriage.