Frances Effinger Steidel McClintock, 59, active for many years in civic, national and international organizations, died of cancer Saturday at her home in Alexandria.

At the time of her death, she was a trustee of WETA, a public broadcasting television station in Washington, and a delegate to the national Corporation for Public Broadcasting.

In 1961, Mrs. McClintock was a founder and co-chairman of The Hospitality and Information Service (THIS), an organization to welcome foreign diplomats. She served as its president from 1967 to 1969 and remained active until her death.

She was on the boards of the Pan American Development Association, the Pan American Liaison Committee, of Women's Organizations, Inc., the School of International Service of American University, the National Council for Committee Services to International Visitors (COSERV) and the Volunteer Action Council of the Health and Welfare Council.

A former trustee of Meridian House International, Mrs. McClintock was a member of the United States Center of International Women's Year and was in Mexico City in 1975. She belonged to the National Organization of Women and the National Council of Women.

In 1975, she was coordinator of the Honduran Reconstruction Fund of the Pan American Development Foundation, established to aid the victims of the Honduran earthquake that year.

Last year, she was in charge of the Bicentennial program of the Alexandria Chapter, Daughters of the American Revolution, which established a scholarship in her name.

Born in Logan County, W. Va., Mrs. McClintock grew up in San Francisco and attended Stanford University. She first lived in the Washington area from 1939 until 1948, when her husband, John C. McClintock, was special assistant to the Secretary of Commerce and then assistant to Nelson A. Rockefeller while he was Coordinator of Inter-American Affairs at the State Department.

During that period, Mrs. McClintock was president of the D.C. League of Women Voters and served as a nurse's aide at the old Emergency Hospital.

She and her husband then lived in Boston until returning here in 1961. She had been active in Democratic Party affairs both here and in Massachusetts.

In addition to her husband, of the home, she is survived by two sons, John W., of Baltimore, and R. Michael, of New York and The Hague; three daughters, Mrs. Robert Vas Dias, of London, England, Mrs. Giles Payne, of Fairfield, Conn., and Deborah McClintock Vitek, of Alexandria, and six grandchildren.

The family suggests that expressions of sympathy may be in the form of contributions to the Public Broadcasting Service, THIS, the Overseas Fund of the League of Women Voters, the Clearinghouse for Women's Issues or the Virginia Chapter of ERA.