Katharine Jarman Clark, 74, a journalist for more than 50 years who won prizes for her work as a foreign correspondent, died Feb. 2 at her home in Washington. She had cancer.

Mrs. Clark was a native of New York City and attended the Madeira School and Smith College. She began her journalism career before World War II with part-time newspaper and radio jobs in New York, Ohio, and Panama City. During the war, she wrote radio news for the Associated Press. The end of the war found her in Europe.

Beginning in 1948, she and her husband Edgar began filing stories from central and eastern Europe. During the 1950s, she worked for the old International News Service in Belgrade and Vienna.

Among the stories she covered was the historic break between Yugoslavia's leader, Marshal Josep Broz Tito, and his chief lieutenant, Milovan Djilas. Mrs. Clark smuggled manuscripts of some of Djilas' writings out of Yugoslavia. These manuscripts included portions of what were published as "The New Class" and "Conversations With Stalin."

Mrs. Clark also worked for both the NBC and ABC radio news networks and was a stringer for the London Sunday Times and The Washington Post. She reported for The Post from West Berlin from 1963 to 1967. She also had worked for the United Nations.

Settling in Washington in the mid-1960s, she worked for the Voice of America before joining Reader's Digest, for which she was a researcher since 1968.

Her awards included an Overseas Press Club citation and the George Holmes Memorial Trophy.

In addition to her husband, of Washington, her survivors include a son, Edgar Sanderford Clark of Mill Valley, Calif., and four grandchildren.