Preceded in death by parents, Paul, Sr. and Catherine Floersch; brother, Paul Floersch, Jr.
Survived by her sisters of the Sisters of Mercy; sisters, Mary Dolan, Catherine Criqui; sister in law, Mary Lou Floersch; nieces and nephews.
Sr Rosemary was the founder and director of the Sudanese Outreach Project which began in January 2003.
The goals of the project are to assist in the provision of basic necessities to struggling Sudanese families and to tutor children and assist the Sudanese families in making contacts for education. She was at Mercy High School for many years as a teacher and debate coach.