Carol A. Witteman Summerfield, 75, of Madison, passed away peacefully on Tuesday, April 17, 2018 at Yale-New Haven/Smilow Cancer Hospital with her family by her side. She was the wife of the late Ronald Summerfield.  Carol was born in New Haven on November 27, 1942 and was the daughter of Stephanie Citak Witteman and the late Kenneth C. Witteman, Sr.  She was the owner of Agra Truck of North Branford.   Mother of Debra Thomas (Bob) and Donald Litke.  Grandmother of Alexander Thomas, MD and Cristina Thomas, Esq.  Sister of Kenneth Witteman (Kathryn), Lynn Bay (Bill III) and Lynda Farace (Tommy). Funeral services will be conducted in the North Haven Funeral Home, 36 Washington Avenue, Friday morning at 11:00.  Interment will follow in All Saints Cemetery. There will be no visiting hours.  In lieu of flowers, memorial contributions may be to the Yale Cancer Center for Ovarian Cancer Research, PO Box 1849, New Haven, CT 06508.