A native of Belleville, Audrey Marsh King entered the family business, Marsh Stencil Company, in 1952 and became the manager of export sales. By 1998 she had developed a network of distributors in a hundred countries. She was a member of overseas trade missions and was the first female member of the St. Louis Regional Commerce and Growth Association's board of directors. The US Department of Commerce appointed her to advisory commissions and presented her company with two "E" awards for increasing US exports. In 2004 King was inducted into the national Packaging and Processing Hall of Fame. She served on the board of directors of Memorial Hospital and was a board member and president of the Belleville Philharmonic.