Robert Stanley Mandelstam, 68, a retired official of the CIA who became a consultant on international trade and educational planning, died Sept. 28 at Sibley Memorial Hospital. He had heart and lung ailments.

Mr. Mandelstam, a resident of Washington, was born in Sioux City, Iowa. He grew up there and in Baltimore. He graduated from Johns Hopkins University, where he was elected to Phi Beta Kappa.

During World War II, Mr. Mandlestam enlisted in the Navy. He studied Japanese at the Navy's Oriental Language School in Boulder, Colo., received a commission, and joined the Office of Naval Intelligence in Washington. After the war, he remained with the ONI as a civilian.

In the late 1940s, he joined the CIA. He had a number of assignments with the Defense and State departments, and his foreign posts included Greece and Germany.

In 1969, he resigned from the CIA and went to work for Kermit Roosevelt & Associates, a consulting firm specializing in foreign trade. About 1973, he joined NAVCO, a firm specializing in educational planning, as its international vice president. He retired in 1983.

Mr. Mandelstam spoke Spanish, Greek, German and Japanese, in addition to English.

He was a member of the International Club, the Fort McNair Officers Club, the Federal City Club and the Timber Ridge Bassetts.

His wife, Rosemary Rogers Mandelstam, died in 1984. Survivors include one brother, Theodore D. Mandelstam of Washington.

ROSE G. KERR,

74, retired chief of the National Home Economics Research Center in College Park, died Sept. 29 at Washington Hospital Center of complications after heart bypass surgery.

Mrs. Kerr, a resident of Bethesda, was born in San Francisco and graduated from the University of Idaho.

She was a school teacher in Idaho before moving to the Washington area in 1942.

In 1944 she went to work at the National Home Economics Research Center, which then was part of the Department of the Interior. When she retired in 1972 the center was part of the Department of Commerce. Mrs. Kerr's duties involved supervision of several publications.

She was a member of the American Home Economics Association, the American School Food Service Association and the National Restaurant Association.

Survivors include her husband, John H. Kerr of Bethesda.

DOROTHY C. BAUER,

74, a retired staff member of the National Council on Aging's Institute on Age, Work and Retirement, died Sept. 28 at George Washington University Hospital after a stroke.

Mrs. Bauer, who lived in Washington, was born in Taylor, Tex., and raised in Fort Wayne, Ind. She lived briefly in Minneapolis and Chicago before moving to Huntington, W.Va., where she lived from 1949 to 1968.

From 1965 to 1968, Mrs. Bauer was director of the Southwestern Community Action Council in Huntington, an agency that provided programs for low-income people.

In 1968, she moved to Washington and joined the staff of the National Council on Aging. She retired from the council in 1983. Since then she had been an independent consultant on programs affecting older workers.

Her husband, Paul Bauer, died in 1951, and a son, Robert J. Bauer, died in 1983.

Survivors include two daughters, Ann B. Rodriguez of Reston and Phyllis B. Madachy of Columbia; a son, David C. Bauer of New York City; a sister, Margaret Saul of Fort Wayne, and four grandchildren.

MARIE R. TAPPAN,

74, a retired employe of the Treasury Department who was active in church and service organizations, died of cardiac arrest Sept. 28 at her home in Washington.

Mrs. Tappan, a lifelong resident of Washington, graduated from Notre Dame Academy. She also attended George Washington University, and she graduated from Dunbarton College of the Holy Cross.

She began her government career in the 1930s with the old National Recovery Administration. During World War II, she worked for the old War Department. In 1954, after several years of raising her family, she went to work at the Commerce Department. In 1956, she transferred to the Treasury. She was a correspondence assistant in the Office of the Secretary when she retired in 1981.

Mrs. Tappan was a former national secretary of the Ladies Auxiliary of the Ancient Order of Hibernians. She also had been secretary of the board of the Holy Cross Sisters Guild and a member of the Reginas Ladies Auxiliary Washington Council of the Knights of Columbus, the Dunbarton and Notre Dame alumnae associations, and the Sodality of the Shrine of the Most Blessed Sacrament Catholic Church in Chevy Chase.

Her husband, Robert Walter Tappan, died in 1959.

Survivors include three children, Thomas Walter Tappan of Bethesda, and Kathryn Vengazo and Mary Claire Steinbraker, both of Rockville, and seven grandchildren.

SHARON TERESA BALL REID,

36, a teacher and counselor in the Prince George's County school system for 12 years, died Sept. 27 at Washington Hospital Center of polycythemia, a blood disorder.

Mrs. Reid, who lived in Fort Washington, was born in Washington and graduated from Ballou High School and Howard University. She received a master's degree in English from Trinity College.

Mrs. Reid had taught English at Friendly and Suitland high schools and Andrew Jackson Middle School, and she had been a counselor at Eisenhower Middle School.

She was a member of Mount Bethel Baptist Church in Washington.

Survivors include her husband, Demetrius A. Reid of Fort Washington; her parents, Donald and Irene Ball of Washington; three sisters, Brenda Robinson of New Carrollton and Stephanie and Robin Denise Ball, both of Washington, and one brother, Keith Edward Ball of Washington.

ROBERT ADAMS WILLGOOS,

73, an architect who had designed schools and other public buildings in the Washington area, died of cancer Sept. 25 at the Martinsburg City Hospice in Martinsburg, W.Va.

Mr. Willgoos was the founder of Willgoos and Associates, an architectural firm based in Alexandria and Washington. Since 1950 the firm has designed 43 school buildings in Northern Virginia, the Fairfax County Courthouse and Office Building, the Alexandria police station and jail, and four elementary schools in Washington.

The firm also has designed housing for embassy and consular personnel overseas, power plants for the U.S. Embassy and consulate in Saudi Arabia and the naval communications facility in Wick, Scotland.

In recent years Mr. Willgoos had been semiretired, but he had designed some churches and restaurants in the Washington area.

A resident of Mechanicsville, Md., Mr. Willgoos was born in Philadelphia and was a graduate of Pennsylvania State University. He was a civilian employe of the Army Corps of Engineers at Fort Belvoir during World War II, then worked briefly as an architect here and in Philadelphia before returning to this area as a permanent resident in 1950.

He was a former chairman of the building code committee in Fairfax and Alexandria and a member of the Alexandria Architectural Board of Review. He also was a member of the Washington Board of Trade, the Washington Building Congress, the Andrew Jackson Masonic Lodge in Alexandria, the Kena Temple of the Shrine and he was a former president of the Optimists Club.

His wife, Helen Louise Graves, died in 1986.

Survivors include a daughter, Bonnie Dee Golde of Richmond; a son, Robert Graham Willgoos of Shepherdstown, W.Va., and three grandchildren.

DR. GEORGE FOX MOTT,

80, the founder and a managing partner of Mott of Washington & Associates, a municipal and transportation consulting firm, died of congestive heart failure Sept. 26 at a hospital in Richmond.

Dr. Mott, who lived in Washington, was born in Riverside, Calif. He graduated from Stanford University, where he also earned a master's degree in political science. He received a doctorate in political science from the University of Minnesota.

He moved to the Washington area in 1940. During World War II he served in the Army in the inspector general's office in Washington and in Korea. He rose to the rank of colonel.

After the war, he was chief economist with the old War Assets Administration before founding his own firm in 1950.

Dr. Mott's books included "The History of the Middle Ages," published in 1933, "Survey of Journalism," published in 1937, and "The Panama Canal: Today's Decision, Tomorrow's Security," published in 1977.

He was a founding member of the American-Korean Foundation and a member of the United Board for Christian Education in Asia, the Sino-American Cultural Society, and the American Academy of Political and Social Science. He also was a member of the Reserve Officers Association.

His wife, Dorothy Williams Mott, died in 1986. Survivors include two sons, David and Jonathan Mott, both of Richmond, and five grandchildren.