Owen Lattimore, 88, who was accused by Sen. Joseph R. McCarthy (R-Wis.) of being the "top Soviet agent in the United States" and then exonerated in one of the most celebrated and controversial cases of the early Cold War era, died May 31 at a hospital in Providence, R.I. He had been in declining health since suffering a stroke last year. Mr. Lattimore, one of the leading China scholars in the West, was director of the Walter Hines Page School of International Relations at Johns Hopkins University when McCarthy made his accusation against him in 1950, at a time when intense anti-communist sentiments were rampant in the United States. During the next five years Mr. Lattimore's name became a household word throughout the country as he fought McCarthy's charges. McCarthy meanwhile attracted banner headlines with accusations that the State Department, other agencies of the government and academia had been penetrated by communists and communist sympathizers. Testifying before a Senate Committee formed to investigate his charges, McCarthy declared he would "stake my whole case on this man {Lattimore}. If I'm wrong about him, then I am discredited as a witness." The committee later found McCarthy's charges to be a "fraud and a hoax," but a second committee, headed by Sen. Pat McCarran (D-Nev.), subpoenaed Mr. Lattimore, a former trustee of the Institute of Pacific Relations and editor of its magazine, Pacific Affairs, for further testimony. "I am not and have never been a communist, a Soviet agent, sympathizer or any other kind of promoter of communism or communist interests, and all of these are nonsense," Mr. Lattimore told the committee. Contending that statement was untrue, the government subsequently prosecuted Mr. Lattimore for perjury, but an indictment was dismissed by U.S. District Judge Luther Youngdahl, who called the charges "formless and obscure." They "demonstrate that the government seeks to establish that at some time, in some way, in some places in all his vast writings over a 15-year period, Lattimore agreed with something it calls and personally defines as following the communist line . . ." the judge said. Youngdahl was later accused by prosecutors of prejudice towards the government and asked to withdraw from the case, a request he denied. In January 1955 he dismissed a new perjury indictment brought against Mr. Lattimore, and the government subsequently dropped all charges. Mr. Lattimore had by then resigned as director of the Walter Hines Page School at Johns Hopkins but stayed on as a lecturer. He remained at Johns Hopkins until 1963 when he was invited to establish a department of Chinese Studies at the University of Leeds in England. He retired from Leeds in 1975. A native of Washington, Mr. Lattimore was taken to China as an infant and raised there where his father was a university teacher. He was educated at home until he was 12, then sent to school in England and Switzerland. He later returned to China and went into business with a company exporting produce from China's inner frontier. Later he received academic and foundation grants to do anthropological and other research in Mongolia and Manchuria, and he became one of the few Westerners to speak the three principal languages of those regions, Chinese, Russian and Mongolian. He had written several books about his travels and observations in China and Mongolia. From 1934 to 1941 Mr. Lattimore was editor of Pacific Affairs, and for the first three years of that job was based in Beijing. In 1937 he interviewed Chinese communist leaders Mao Zedong and Zhou Enlai. He joined the faculty at Johns Hopkins in 1938 while continuing to edit Pacific Affairs. During World War II Mr. Lattimore returned to China briefly as an adviser to Generalissimo Chiang Kai-shek, then worked as deputy director of Pacific operations for the Office of War Information. In retirement, he had lived in Pawtucket, R.I. His wife, Eleanor Holgate Lattimore, died in the mid-1960s. Survivors include a son, David Lattimore, and two grandchildren. HAROLD WINKLER Development & Property Management Executive Harold Winkler, 74, retired chairman and chief executive officer of the Alexandria-based Mark Winkler Management Inc., died of leukemia May 31 at Alexandria Hospital. Dr. Winkler moved to Alexandria from California in 1970 to take over management of the company after the death of his brother, Mark Winkler. He retired in 1988. The firm specializes in development and management of commercial and residential property in Northern Virginia. A native of Lawrence, Mass., Dr. Winkler graduated from Harvard University where he also earned a doctorate in political science. During World War II he served in the Navy in the Pacific aboard the aircraft carrier Shangri-La. After the war he taught at Harvard, then at the University of California at Berkeley. In the early 1950s he was one of several faculty members to leave the university after refusing to take a loyalty oath. Before moving to this area he was president of Pacifica Foundation, which operates nonprofit, noncommercial radio stations. Later he took his family on a trip around the world, then worked for the California legislature. His marriage to Grendel Winkler ended in divorce. Survivors include three children, Karen Winkler of Washington, Matthew Winkler of Austin, Tex., and Michele Finch of Santa Cruz, Calif.; and two grandchildren. SUZANNE CAROLE MOE KETTLER USIA Cataloguer Suzanne Carole Moe Kettler, 31, a cataloguer at the United States Information Agency's Documentation and Information Handling Facility in Bethesda, died of cancer May 28 at her home in Bethesda. Mrs. Kettler was born in Milwaukee, and grew up in Illinois and Salem, Va. She was a summa cum laude graduate of Roanoke College and received a master's degree from the University of North Carolina. In 1984, she moved to the Washington area and began working in the library archives of the Daughters of the American Revolution. The following year she began working at the AID Documentation and Information Handling Facility. She was a member of the American Library Association and Christ Lutheran Church in Bethesda. Survivors include her husband, Thomas Edward Kettler, and a son, Michael Steven Kettler, both of Bethesda; her parents, Dr. Donald and Gloria Lee Moe, and a sister, Jennifer Moe, all of Salem, Va.; a brother, Timothy Moe of Lafayette, Ind., and her maternal grandmother, Hazel Kaisler, and her paternal grandparents, Oscar and Edith Moe, all of Milwaukee. CHARLES WILLIAM UMBAUGH FAA Weather Briefer Charles William Umbaugh, 70, an FAA weather briefer at National Airport from the mid 1950s until he retired in 1965 and a former flight officer for Capital Airlines, died May 31 at his home in Arlington after a heart attack. Mr. Umbaugh was born in Washington and graduated from McKinley Technical High School. He attended Columbus University and the Emerson Institute here. During World War II he served as a radioman in the Army Air Forces in Europe. He joined Capital Airlines here in 1945, and was a copilot and flight engineer with the airline until he went to the FAA. Around 1970 he began working part-time as a free-lance real estate researcher in Arlington and Fairfax. He left that work in the mid-1980s. Mr. Umbaugh was a member of the Petworth Masonic Lodge in Washington. Survivors include his sister, Mary Umbaugh of Arlington. GLENN ARTHUR TROFAST FBI Agent Glenn Arthur Trofast, 73, an FBI special agent for 31 years and a special agent here for 19 years until he retired in 1973, died May 13 of cardiac arrest at a hospital in Hendersonville, N.C. Mr. Trofast, who had lived in Hendersonville since his retirement, was a graduate of Wayne State University in his native Detroit. He joined the FBI in 1942 as a special agent in Los Angeles. He went to San Fransisco a year later, and in 1945 went to Chicago. He was in Detroit from 1946 until he came to the Washington area in 1954. He was a bowler and a member of the Special Agents Society and the Elks Club. Survivors include his wife, Ruth Trofast of Hendersonville; three daughters, Karen Garthright and Linda DeBuchananne of Gaithersburg, and Marilyn Nanna of Lake Geneva, Wis.; a sister, Hazel Harris of Detroit, and 10 grandchildren.