Born in Fall River, the daughter of the late Ernest T. and Rosalina (Barbosa) Cabral, following high school she worked in the billing department of a clothing store.

She entered the Franciscan Missionaries of Mary in North Providence, R.I., in December 1951, and took the name Mary of St. Agathangelus.

After taking her first vows in 1954, she was sent to Fall River, where she served as a commissioner — one of many Sisters of her institute — who traveled the U.S., selling the handwork made in needlework facilities. The proceeds supported missionary endeavors across America as well as young girls employed in needlework industry in overseas missions. 

She also taught at Espirito Santo School in Fall River.

Fluent in Portuguese, Spanish and French, as well as in English, Sister Cabral taught English in Lima, Peru; was missioned to Cartavio to assist in a hospital, and served as superior. 

In 1985, she was returned to the Peru region to work with girls in a shelter for children from broken families. She returned to the U.S. in 1998 for health reasons and served as a receptionist to the Franciscan Community in Rosalyn. N.Y. She celebrated her golden jubilee in religious life in 2002.

In 2005, Sister Cabral was missioned to the Queen of Peace Community in North Providence, where her ministry was one of prayer for the Church and the world.

She leaves a brother, Albert Cabral of Spring Hill, Fla.; nieces and nephews, and grandnieces and grandnephews.

She was also the sister of the late Agnes, Alice, Ernst, David and Anthony Cabral, and Mary Moniz.

Her funeral Mass was celebrated May 13 in the Holy Family Chapel of the Franciscan Sisters in North Providence. 

The Russell J. Boyle & Son Funeral Home in Providence was in charge of arrangements.