Complex sentence: Zara Ciscoe Brough (1919-1988), commonly referred to as Princess White Flower, was a Chief of the Nipmuc Indian Tribe from 1962 to 1987; best known her advocacy work that helped ensure the preservation of Nipmuc heritage.
Split into simpler sentences: Zara Ciscoe Brough (1919-1988), commonly referred to as Princess White Flower, was a Chief of the Nipmuc Indian Tribe from 1962 to 1987. She was best known for her advocacy work that helped ensure the preservation of Nipmuc heritage.