When First Church grew beyond the capacity to expand, the congregation voted to build Lakeview Park Church of the Nazarene as a home missions project.  The Jamisons were among 68 volunteers who agreed to help organize that church. It was at Lakeview Park that Marion began his first venture as an adult class teacher and discovered a passion that gave meaning and direction to his life. 

Once Lakeview Park was well established, the Jamisons returned to OKC First.  Marion immediately started another adult class.  The Church secretary compiled a list of members who did not attend Sunday School, and Marion began to contact them – by letter, phone, personal visits and even by telegrams – until they agreed to visit the class.  Then they were hooked, for they found in Marion an outstanding teacher who made God’s Word relevant to their lives.  They also came to enjoy a unique time of fellowship as they shared coffee and doughnuts before class – “unique” because no other class had done this.

In 1966, Olivet Nazarene College requested that Marion supervise the building of a planetarium on their campus.  True to form, the first month on campus, Marion requested a room to start a Sunday School class at the College Church. When the Planetarium was completed, the Jamisons returned to Oklahoma City, and Marion started his fourth adult class in the present facility.  Marion started the four classes with less than five people in each class the first Sunday and each class grew to an attendance of 75 to 100 members.  Some of those members are still serving at OKC First Church..

His life took a circuitous path, but OKC First Church was always home to him.  His teaching career ended only when illness forced him to retire.  Dr. A.S. London called Marion “Mr. Sunday School” – and that was a fitting designation for him.