[2] Gunter was raised on a farm in northern Indiana and worked in the family-run sawmill.
He received his bachelor's degree in history from Indiana University Bloomington.
After college, he attended Gordon-Conwell Seminary for a time then moved to California, where he taught high school.
In addition to his pastoral work at the parish level, Gunter served as Spiritual Advisor, Chicago Episcopal Cursillo; Member of Diocese of Chicago Commission on Global Ministry; Dean, Aurora Deanery; Deputy to three General Conventions; Chaplain of the 75th General Convention; Member of Diocesan Windsor Report Task Force; Led four-member official delegation from Diocese of Chicago to Diocese of Renk, Sudan; Board of Directors – Ekklesia Project (2003–2006); Chair of Diocesan Annual Campaign; Spiritual Director on several Cursillo weekends; Spiritual Director on two Happening weekends and hand-to-hand volunteer for San Joaquin County AIDS Foundation.
[3] Gunter was elected bishop of the Diocese of Fond du Lac on October 19, 2013.