Leon Zook grew up in Belleville, PA, and Virginia Beach, VA. He and his wife, Mary, raised 7 children. Leon bought Princess Anne Cabinets, a shop where he had worked. He later sold this shop and bought Kempsville Cabinets, providing work for the community, church, and his three sons. In 2001, he started Mountainside Wood Products with a dual desire to provide employment for farmers and to manufacture doors for his cabinet shop.