Sinsinawa Dominican Sister Joan (Ternan) McCann, 85, died April 9 in Racine, Wisconsin.

Born in Chicago, she professed vows with the Sinsinawa Dominicans in 1961. She earned a bachelor’s degree in mathematics, a master’s in the teaching of mathematics and a master’s in education management and supervision.

Sister Joan’s ministry was dedicated to education, administration and consultancy. She taught at schools in Washington, D.C.; Freeport, Illinois; Madison, Wisconsin; and Baltimore Maryland; as well as at St. Mary School, Evanston, and Sts. Faith, Hope and Charity School, Winnetka.

She was an assistant superintendent in the Office of Education of the Archdiocese of Atlanta before joining with Adrian Dominican Sister Mary-beth Beres to found Leadership Systems, a nonprofit consulting ministry serving religious congregations, social service organizations and schools.

Following that ministry, Sr. Joan served the Sinsinawa Dominican congregation as vicaress provincial of the Southern Province before becoming vicar for consecrated life for the Archdiocese of Atlanta.

Sister Joan retired in 2010 and volunteered in the Oak Lawn area until 2024, when she moved to Stair Crest, a senior living community in Muskego, Wisconsin.

She is survived by three sisters: Marjorie Kayser, Alice McCann, and Nancy Tegtmeyer.