Alzora Hale Eldridge, 63, a liaison officer at the Organization of American States until her retirement in 1971, died of cancer Wednesday at her home in Meredith, N.H.

Mrs. Eldridge, who was born in Newton, Mass., came to Washington in 1939 to work for the Pan American Union. In 1941, she joined the State Department, where she worked on Latin American affairs. In 1944, she resigned to marry Lynn Edwin Eldridge, a Labor department official who then was serving in the Navy.

Mrs. Eldridge began her career with the OAS in 1960. Her duties were to maintain liaison between the organization and nonmember governments and with other international organizations. She and her husband both retired in 1971, and Mrs. Eldridge moved to New Hampshire after her husband's death in 1972.

In the 1930s, she had earned a bachelor's degree from Smith College and a master's degree in diplomatic history from the Fletcher School of Law and Diplomacy at Tufts University. She worked at the Littauer Center at Harvard University before moving here.

Mrs. Eldridge had been a member of All Souls Unitarian Church in Washington. She also had served on the board of the YWCA and had been active in supporting the Boys Scouts. She was a member of the Smith College Club here.

Survivors include two sons, Douglas Hale, of Portsmouth, N.H., and Paul Stevens, of West Hartford, Conn., and a sister, Alice Hale Andrew, of Bethesda.

The family suggests that expressions of sympathy be in the form of contributions to the Alzora Hale Eldridge Memorial Fund, c/o Robert E. Jones, 5062 Fielding La., Temple Hills, Md., 20031, for charities and memorials that reflect here interests, concerns and accomplishments.