Graham and Shirley Powell were born and grew up in New Zealand. Graham became a Christian as a young man through the ministry of Youth for Christ. Shirley was raised in a Christian family and gave her life to Jesus as a child. The two met as voluntary workers in Wellington, New Zealand, with Open Air Campaigners (O.A.C.), an international, interdenominational, evangelistic organization founded in Australia.
Shortly after their marriage they came on staff with O.A.C. serving firstly in Wellington and Hamilton before moving to N.S.W., Australia, with the same organization. From N.S.W. they moved to Brisbane, Queensland, where they served at Christian Life Centre before moving to British Columbia, Canada. For fifty years they have been involved in evangelistic and pastoral ministry, Christian Camping, and itinerant teaching ministry.
Based on Vancouver Island for the past twenty nine years, Shirley is active in local church life while Graham is primarily involved in itinerant work in Canada and internationally. Graham's burden is to equip believers for the work of service. He has written four books: Christian Set Yourself Free, Fear Free, Two Kingdoms - the battle for man’s soul and Called to Conquer.