John Crocker was born in South Africa to English parents. When he was a teenager his family moved to Canada. John came to the United States for his college and graduate education. John holds the Master of Divinity and Doctor of Ministry degrees from Trinity Evangelical Divinity School (Trinity International University).
John served as a pastor for thirty-three years in three churches in Indiana, California, and Illinois. He then served an additional seven churches as interim pastor in the Midwestern United States for over eight years.
He met and Married Elizabeth (Liz) in suburban Chicago. They have one child, John Desmond Jr. He and his wife Molly live in Rhode Island. They have twin children, Wrigley Michael and Lucy Elizabeth.