Studying these cells could lead to new treatments for diseases ranging from gastrointestinal disease to diabetes.
Margaret Otto, former associate -director of the MIT Libraries, died Dec. 10 of complications from colon cancer at her home in Hanover, N.H. She was 69.
Otto worked at the MIT Libraries from 1964 to 1979 and later became the first woman to head the Dartmouth College libraries. At MIT, she was assistant science librarian before becoming associate director.
Otto was born in Boston and graduated from Boston University in 1960 with a degree in English literature. She also earned two master's degrees from Simmons College, one in library science and one in English literature.
She is survived by two sons, Peter, of Salem, Ore., and Christopher, of Olympia, Wash.; a sister, Joan Sergi of Sudbury, Mass.; and two grandsons.
A memorial service was held in December at St. Thomas Episcopal Church in Hanover, N.H.
Richard E. Dean Sr.
Richard E. Dean Sr. of Braintree, a retired employee of Lincoln Laboratory, died Dec. 6.
Dean was a member of the MIT Quarter Century Club and was a veteran of the Korean War.
The husband of the late Lorraine P. (Conway) Dean, he is survived by two sons, Richard Dean Jr. of Braintree and Stephen Dean of Weymouth; five daughters, Mary Patts, Janice Martini and Carol Ritz of Braintree, Lorraine Patts of Quincy and Nancy Burke of Pembroke; a sister, Marilyn English of Woburn; 13 grandchildren; three great-grandchildren and many nieces and nephews.
Donations may be made to the American Legion Child Welfare Foundation,
P.O. Box 1055, Indianapolis, IN 46206.