From 1972 to 2004 her doll collection was exhibited at the Brandywine River Museum in Chadds Ford during the Christmas holidays.
McCoy studied piano with William Hatton Greene, composition with Harl McDonald at the University of Pennsylvania,[2] and painting with her father.
In 1935, she married John W. McCoy II, a young artist whom she had met when he studied with her father at the Chadds Ford studio.
[1] The Brandywine River Museum has an Ann Wyeth McCoy collection, which contains correspondence, photographs, musical compositions, sound recordings, and her early drawings.
[4] McCoy composed many songs for special people or occasions, such as a tribute to a White House dinner honoring her brother Andrew Wyeth; lullabies for the children of friends and family; and songs about art such as her brother's paintings or a sculpture by Degas.