Nature 18

Sr. Rosaleen Sheridan, RSHM

September 2, 1932 ~ April 27, 2021 (age 88)


Sr. Rosaleen (Sr. Kostka) Sheridan (88) died April 27, 2021, at Marymount Convent, Tarrytown, NY.  Born in Co. Cavan, Ireland, to Patrick and Annie McCannon Sheridan, she had been a member of the Religious of the Sacred Heart of Mary for 71 years.   

She taught at St. Anne’s School, Garden City, NY; Marymount School of New York; and Istituto Marymount, Rome, Italy. She taught and was a guidance counselor at Marymount International Schools in Rome, Italy and London, England, and was the head of school in London. She ministered in social work and adult education at the parish of San Carlo Borromeo in Cibrone, Italy. While living in Rome, she was also very involved in the English-speaking communities at Santa Susannah and St. Patrick’s Church.

She retired from active ministry in 2012 and moved to Marymount Convent, Tarrytown, NY. She was a member of the Convent community at the time of her death.

Sister Rosaleen is survived by a sister in Ireland, by sisters-in-law, nieces, and nephews in Ireland and the United States, and by the members of her religious community.      

Mass of Christian Burial, Marymount Convent, Friday, April 30, 11:00 am. Burial Mount Calvary Cemetery, White Plains. Because of COVID-19, visitors are not permitted in the Convent. However, we invite you to join us for the live-streamed Mass on our Eastern American website ( or facebook page (Religious of the Sacred Heart of  Mary, Eastern America - Home. Facebook), where it will be also 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

To send flowers to the family or plant a tree in memory of Sr. Rosaleen Sheridan, RSHM, please visit our floral store.

Memorial Tree
A Memorial Tree was planted for Sr. Rosaleen

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Mass of Christian Burial
April 30, 2021

11:00 AM
Marymount Convent
32 Warren Avenue
Tarrytown, NY 10591

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