 As a teenager, Lunn decided to enter the Christian ministry and he began three years of preparatory educational work to make up the high school education that he lacked.He was accepted to Bellevue College in Bellevue, Nebraska, enrolling in the fall of 1892 and graduating in 1897.In 1893 the 20-year old Lunn was approached by the congregation of a small church in La Platte, Nebraska, located five miles south of Bellevue, and was asked to become their pastor.