Directors Whigger and Mary Jo Mullins founded, own and form the leadership core of Mullins Camp and Trails Wilderness School. They are third generation camp directors dedicated to working with young adults in the wilderness, giving students a healthy supportive environment to grow, learn, and have fun.

Whigger has a BS of Nursing from St. Louis University. He worked as a nurse on the adolescent unit of Cardinal Glennon Children's Hospital. Prior to directing Trails, he worked on staff with the Boy Scouts of America and as a Counselor, Trip Leader and Assistant Director at another camp. Whigger grew up in St. Louis. He and his family lived for three years on a sailboat in the Caribbean. Personal expeditions include backpacking, canoeing, climbing, surfing and horse packing trips in many Western States, Alaska, Europe, Mexico and Africa. He presently serves as Secretary on the board of the Association of Indpendent Camps.

For Mary Jo skiing, hiking, fly fishing, and horseback riding were a way of life growing up on a ranch in Jackson Hole, Wyoming. After graduating from Ethel Walker School in Connecticut, Mary Jo received a BS of Business Administration from Washington University in St. Louis. She has worked as a Counselor and Trip Leader at Teton Valley Ranch Camp. Following college, Mary Jo worked at Camp Wyman in St. Louis as an outreach program instructor. Her personal expeditions include backpacking, climbing, and horse packing in the West, Alaska, and Europe.

Whigger and Mary Jo have three young children, Mariah, Benjamin and Michael. They live in St. Louis during the winter and Jackson Hole during the summer.