Mary Townley may refer to:Mary Townley (1614-1662) (1614-1662) Great-Great-Grandmother of George Washington. Mary Townley (architect) (1753–1839), English architect Mary Katherine Campbell (1905–1990), only person to win the Miss America pageant twice, married Frederick Townley Mary Boggs (1920–2002), American muralist and textbook author who published under the name Mary Ross Townley