Dorothy R. Zimmerman, a retired Johns Hopkins University assistant registrar, died of multiple organ failure Sunday at Gilchrist Hospice Care. The longtime Mount Washington resident was 87.
Born Dorothy Ritter in Baltimore and raised in Canton, she was a 1940 Eastern High School graduate.
Mrs. Zimmerman worked at Hopkins' Homewood campus and retired as assistant registrar in 1987. She was associated with the school for 25 years.
She was a volunteer at Greater Baltimore Medical Center for many years, serving several times as chairwoman of its annual Nearly New Sale.
"My mother was the most positive person I have ever known. She was a glass-half-full person," said Don Zimmerman, the University of Maryland, Baltimore County lacrosse coach who lives in Towson. "She truly enjoyed people and had a positive influence on everyone who knew her."
Mrs. Zimmerman had been a resident of the Pickersgill retirement community. She was a member of St. John's Episcopal Church in Mount Washington, where a service was held Thursday.
In addition to her son, survivors include two daughters, Jane Gunning of Sterling, Va., and Judith Dewey of Arlington, Va.; a brother, Ronald Ritter of Falbrook, Calif.; a sister, Margaret Middleton of Baltimore; eight grandchildren; and eight great-grandchildren. Her husband of 49 years, James B. Zimmerman Jr., died in 1996.