Frank Helsel graduated from Hollidaysburg High School in 1930, and then attended Gettysburg College and Gettysburg Theological Seminary in Pennsylvania, and was ordained a Lutheran minister after graduation in 1938. His first pastorate was in Jeannette, Pennsylvania, from which he enlisted for military service in 1942, and was commissioned a U.S. Army chaplain. He earned a Silver Star in World War II and after his discharge became the pastor of a Lutheran Church in Youngstown, until he returned to military service in 1947. He once again served in combat as a chaplain in the Korean War, and earned a second Silver Star. He retired as a U.S. Army colonel after 26 years of military duty. Following retirement, he accepted an invitation to pastor Trinity Evangelical Lutheran Church in Boonsboro, Maryland, where he served for 7 years. After retiring for a second time, he moved to Frederick, Maryland, where he lived with his wife until his death in 1998.