Donald R. Ulrich, 54, an official of the Air Force's Office of Scientific Research whose work included development of advanced optical materials for use in the Star Wars space defense program, died of cancer Nov. 14 at his home in Alexandria.

Dr. Ulrich was a physicist and an authority on material science and ceramics engineering. He joined the staff of the Office of Scientific Research in 1975, and he was program manager and deputy director of the chemical and atmospheric science directorate when he died.

He organized programs involving many aspects of research on polymers, electro-optical materials and other composite structures that have applications in national defense. He was an advocate of international scientific cooperation, and his work for the Strategic Defense Initiative, which is known as Star Wars, entailed the cooperation of scientists in Britain, France and Japan as well as the United States.

Dr. Ulrich was the author or co-author of more than 45 papers published in professional journals, and he was co-editor of 12 books in the field of material science. In 1988, he received the Strategic Defense Award and Gold Medal of the American Defense Preparedness Association, and in 1989, he received the Leo Friend Award from the American Chemical Society for his work on the chemical syntheses of ceramics.

He was a colonel in the Air Force Reserve and had commanded a detachment at the National Defense University in Washington.

A native of West Orange, N.J., Dr. Ulrich graduated from Rutgers University, where he also received master's and doctoral degrees in physics. He did post-doctoral work at the University of Minnesota and the Massachusetts Institute of Technology. From 1963 to 1965, he served in the Army.

He then went to work for the National Aeronautics and Space Administration's Langley Research Center in Hampton, Va. He worked for the General Electic Co. in Syracuse. N.Y., and Valley Forge, Pa., before moving to the Washington area in 1975 and beginning his career with the Air Force.

Dr. Ulrich was both a graduate and a faculty member of the Air War College at Maxwell Air Force Base in Montgomery, Ala., and in the late 1960s he was an adjunct professor of physics at the University of Virginia.

He was a member of the American Ceramics Society, the American Chemical Society, the American Defense Preparedness Association, and Sigma Xi, The Scientific Research Society. He also was a member of Good Shepherd Catholic Church in Alexandria and the Reserve Officers Association.

Survivors include his wife of 30 years, Eleanor P. Ulrich of Alexandria, and three children, Carolyn Ulrich of Amherst, Mass., Wendy Ulrich of Harwich, Mass., and Christopher Ulrich of Alexandria.


Antiques Dealer

Libby Sangster, 72, the owner of Antiques on the Hill, an antiques store on Capitol Hill, died of cancer Nov. 20 at her home in Washington.

Mrs. Sangster, who had lived in Washington since 1940, was born in Brooklyn, N.Y.

As a young woman she was an artist's model and posed for classes at American University and the Phillips Collection. She founded her antiques store in 1960.

Her husband, J. Gilbert Sangster, died in 1967.

Survivors include a daughter, Gina Sangster Hayman of Washington; three sisters, Hannah Nasoff of Poughkeepsie, N.Y., Roslyn Fishman of Far Rockaway, N.Y., and Regina Henderson of Red Bank, N.J.; a brother, Lippy Grabel of New York City; and two grandchildren.


Real Estate Broker

Alex Litman, 76, a retired real estate broker, died Nov. 20 at Sibley Memorial Hospital after surgery for an aneurysm. A native of Washington, he lived in Bethesda.

Mr. Litman attended McKinley Technical High School and Southeastern University. During World War II he served in the Pacific as a Navy radioman.

After the war, he owned a grocery store on Wisconsin Avenue NW and later operated hardware stores on Kennedy Street NW and in Alexandria.

He went into the real estate business in 1959, and began his own company, Litman Realty, in 1963. It handled real estate sales in the Washington area. Mr. Litman retired in 1986.

He was active with Adas Israel Congregation, the Jewish War Veterans, the Progress Club, the National Children's Center and the Hebrew Home of Greater Washington, where he volunteered twice a week to help with rehabilitation and occupational therapy.

He is survived by his wife, Esther Kronman Litman, of Bethesda; a daughter, Harriett Silverstein, of Brooklyn, N.Y.; two sons, Mark Litman, of Edina, Minn., and Arnold Litman, of Gaithersburg; a sister, Sophie Shapiro, of Washington; a brother, Louis Litman, of Culver City, Calif.; and eight grandchildren.


Church Volunteer

Mary Meyers Donnally, 90, who moved to Washington in 1911 when her late father, Henry Lee Myers, was elected as a Democratic senator from Montana, died of congestive heart failure on Nov. 20 at Fernwood House in Bethesda.

Mrs. Donnally, an early resident of Foxhall Village in the District, was active as a volunteer for the Episcopal Church and as a supporter of environmental groups. She was a graduate of the old Gunston Hall School and Virginia College in Roanoke.

During World War II, she served with the American Women's Volunteer Services and volunteered with the Red Cross after the war. She served on the board of the Episcopal Center for Children in Washington and was a longtime member of St. Thomas Episcopal Church and the Sierra Club.

She had maintained a summer home in West Newbury, Vt., for 42 years. Her husband, John C. Donnally, died in 1947, and a daughter, Henrietta L. Donnally, died in 1973.

Mrs. Donnally is survived by another daughter, Mary Anne D. Eckert of Chevy Chase; three grandchildren; and a great-granddaughter.


AT&T Supervisor

Ann E. Lacey, 72, a retired service supervisor for AT&T, died of congestive heart failure Nov. 20 at Suburban Hospital.

Mrs. Lacey, a lifelong Washington resident, had worked for AT&T for 38 years before retiring last year.

She was a member of St. Bartholomew's Catholic Church in Bethesda and the George Washington chapter of Telephone Pioneers of America.

Survivors include her husband, William Lacey of Washington; a son, William Lacey Jr. of Olney; her mother, Fannie Warring of Washington; two sisters, Frances Kittle of Bethesda and Nancy Carlson of Bryantown, Md.; a brother, John Warring of Washington; and three grandchildren.