Complex sentence: Along with Saint Madeleine-Sophie Barat, Rose was a prominent early member of the Society of the Sacred Heart, and founded the first houses of the Society of The Sacred Heart in the United States of America.
Split into simpler sentences: Along with Saint Madeleine-Sophie Barat, foundress, she was a prominent member of the Society of the Sacred Heart. She was the foundress of the first houses of the Society of The Sacred Heart in the United States of America.