Complex sentence: When the Sisters of St. Joseph settled in Boston in 1873, they were eager to continue their educational ministry begun in Brooklyn, NY, and in 1884 under the leadership of Mother Mary Regis and Msgr.
Split into simpler sentences: When the Sisters of St. Joseph settled in Boston in 1873, they continued their educational ministry begun in Brooklyn, NY. In 1884, under the leadership of Mother Mary Regis and Msgr.