Persistent operating deficits challenge Colonial Williamsburg Foundation. Income comes from attendance and merchandising, but is lost at hospitality properties. Other funds come from investments of the endowments and a fundraising operation that occupies half of the foundation's four-story headquarters. Financially focused efforts in recent years have primarily concentrated on cost containment and stimulating attendance and hospitality revenues. The foundation has also sold some property assets it decided were no longer essential to its core mission, including most of its formerly owned properties on nearby Peacock Hill, which has the local distinction of having formerly been home to Georgia O'Keeffe, Mayor Polly Stryker, and Dr. Donald W. Davis, founder of the Virginia Institute of Marine Science.