Denny, after a stint in the US Air Force, attended Zion Institute. He secured his master's degree and later his Doctorate from the Assemblies of God Seminary in Springfield, MO. 

He and his wife, Debby, served in various ministries: youth pastors in Illinois and Massachusetts, missionaries to Spain, and District leaders in Southern New England before accepting lead pastorate in Pennsylvania. Then, Denny and Debby, reappointed as missionary educators, served all the Spanish-speaking world in the western hemisphere. They then moved to Jamaica to serve as faculty at the Assemblies of God Bible School in Christiana, Jamaica.  After serving as a missionary-in-residence for one year at the University of Valley Forge, they moved to Costa Rica to direct the language and cultural training center for all new US Assemblies of God missionary educators to both the Spanish-speaking world and the English-speaking world of the Caribbean.

They have two adult children and two granddaughter. They are celebrating 45 years of marriage and ministry this year.