Mary Thomasita Fessler (February 23, 1912 – April 1, 2005) was an American painter and religious sister.
[2] She joined the Sisters of St. Francis when she was 17 years old and went on to graduate from University of Wisconsin–Milwaukee and the School of the Art Institute of Chicago.
[3] Two of her large sculptures made of precious woods are featured on the second and fourth floor walls of the Marquette University library.
Her hand-carved 16-foot crucifix, altar sculptures, or stone carvings are found in churches throughout the United States.
Her Studio San Damiano, where she worked for decades with artist Irene Kilmurry, closed on April 14, 2004.