Ossining, N.Y., Sept. 30, 2025 – Sister Theresa Ann Mallmann, M.M., a Maryknoll sister known for her motherly compassion, died on Sept. 15, 2025, the Feast of Our Lady of Sorrows. She was 93.

Sr. Ann, as she was known in recent years, was born on December 18, 1931, in Detroit, Michigan. She was the fifth and last child of Louis Anthony Mallman and Josephine Quaiatto Mallman. She is predeceased by her parents and siblings.

After being graduated from St. Bernard’s High School in 1949, Sr. Ann studied nursing at Mt. Carmel School of Nursing at Mercy Hospital, Detroit, becoming a registered nurse in 1956. Later, she earned a bachelor’s degree in science in nursing at Pace University.

Sr. Ann entered the Maryknoll Sisters, at Maryknoll, New York, on Sept. 2, 1959, and made her first profession of vows on June 24, 1962. She received the name Sister John Anthony.

In 1963, she was assigned to the Taiwan Region, where she made her final profession in 1968. She remained in Taiwan until 1972, enthusiastically tackling demanding work among the Chinese and Aboriginal People in Wu-She, Nantou, Hsien, a remote and isolated mountainous area. She organized a clinic, gave pastoral care and set up a kindergarten for children. However, while there, she became ill and returned to New York to recover her health and update her studies.

Deciding to remain in the United States, Sr. Ann worked in New York City and later with the Sinsinawa Dominicans in Wisconsin as a holistic health educator and therapist, serving the local and Native American communities until Covid struck in 2020. At this time, she returned to the Maryknoll Center in Ossining, and in early 2021 was seriously injured in a fall. Sr. Ann remained at the Center until her death.

A wake for Sr. Ann Mallmann was held on Sept. 25 in the Annunciation Chapel on the grounds of Maryknoll Sisters in Ossining, N.Y. A Mass of the Resurrection was held on Sept. 26 also in the Annunciation Chapel.