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Sister Ann O’Holloran

by RSHM Eastern American AreaCategory: Obituaries

Sister Ann O’Halloran, RSHM

Sister Ann O’Halloran, RSHM, died at Marymount Convent, Tarrytown, NY, on Sunday, November 7, 2021.   

Sister Ann O’Halloran RSHM, previously known as Sister Rosaleen, died at Marymount Convent, Tarrytown, NY, Sunday, November 7, 2021. She was 80 years of age and had been a member of the Religious of the Sacred Heart of Mary for 60 years.

She was born Ann Brigid O’Halloran in Co. Cork, Ireland, on July 6, 1941, to John and Anne Beirne O’Halloran. 

She received a BA in History from Marymount College, Tarrytown, NY, and an MA in Anthropology from the New School for Social Research in New York City.

After graduating from Marymount School in Neuilly, France, she entered the congregation at the RSHM Novitiate in Tarrytown, NY, on August 31, 1959. At the time she became a novice, she received the religious name of Rosaleen. She made her first vows on June 29, 1961, in Tarrytown and her final vows on June 29, 1966, in Bogota, Colombia. 

After teaching for one year (1963-1964) at Marymount School, NY, NY, she went to Colombia. There she taught at Marymount School, Bogota (1964-1966) and at Marymount School, Medellin (1966-1968). Returning to the United States, she taught at St. Thomas Aquinas School, Bronx, NY (1970-1974); and, at St. Anthony’s School, Manhattan, NY (1974-1984). She was principal of St. Catharine of Alexandria, Brooklyn, NY (1984-1990).

During the many years she lived in the New York City area, she taught courses in anthropology at Marymount Manhattan College. She actively supported the cause for prison reform in Ireland.

Sister Ann served in Dangamvura, Zimbabwe for three years (1991-1994). She returned to Africa in 1997 and became a  member of the newly formed Zambezi Region that included the RSHM in Zambia and Zimbabwe.  She continued her educational ministry through teaching, working with women in economic advancement projects, and through parish and school outreach.

She retired to Marymount Convent, Tarrytown, NY, in 2016 and was living there at the time of her death.

Sister Ann is predeceased by her parents and sister Clare (Collins) and survived by her siblings, Mary (Breslin), John, Michael, and Rosemary, nieces and nephews, and by the members of her religious community.    


Services at Marymount Convent, 32 Warren Avenue, Tarrytown, NY. Visiting Friday, November 12, 4:00 – 7:00 pm with Vigil Service 7:00 pm. Mass of Christian Burial, Saturday, November 13, 10:00 am. Burial Mount Calvary Cemetery, White Plains. 

We ask all non-RSHM attending to present proof of vaccination and to please wear a mask.

We invite you to join us for the live-streamed Vigil Service and Mass on our website ( or Facebook page ( ), where it will be archived.  

In lieu of flowers, gifts in her name may be made to Religious of the Sacred Heart of Mary, 50 Wilson Park Drive, Tarrytown, NY, 10591 

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