She was born Katherine Stewart in Co. Galway, Ireland.
She taught at St. Catharine of Alexandria, Brooklyn, 1940-51; and the Academy of the Sacred Heart of Mary, Sag Harbor, L.I., 1951-55, before being assigned to Colombia, South America. She also taught again at St. Catharine of Alexandria, 1981-94.
She was a member of the staff at Cormaria Retreat House, Sag Harbor, 1998-2000, and a parish volunteer at St. Catharine of Alexandria, 2000-05.
Immediate survivors include one sister, Sister Declan Stewart, M.S.H.R., of Dublin. Burial was in Mount Calvary Cemetery, White Plains, N.Y.
Sister Catherine was a member of the first graduating class at St. Sebastian School, Woodside.
Formerly known as Sister James Michael, she taught at Resurrection-Ascension School, Rego Park, 1941-54, and Bishop Reilly H.S., Fresh Meadows, 1969-70.
She served in the Brooklyn Diocese as provincial treasurer of the Sisters of Charity – Halifax and as a volunteer at Women Helping Women.
She also ministered at St. Elizabeth parish, Melville, L.I., as well as in Massachusetts, Bermuda and Nova Scotia. She retired to St. Barnabas Convent, Bellmore, L.I., in 2009 and resided there until June, 2013.
A Mass of Christian Burial was celebrated July 26 at St. Barnabas parish, Bellmore. Interment followed at St. John’s Cemetery, Middle Village