Ann A. Gray, 90, a retired employe of the Reconstruction Finance Corp. and the Central Intelligence Agency and a former national president of the Women's Overseas Service League, died Tuesday at a nursing home in Newton, N.J. She had arteriosclerosis.

Miss Gray lived in Washington from 1934, when she joined the RFC, until last year, when she moved to New Jersey.

She was born in Mississippi and grew up in New York. During World War I, she was a Red Cross recreation worker and served in hospitals in France and Italy. From 1921 to 1924, she worked with a famine relief agency in Soviet Georgia and Armenia. She was a State Department employe in Santiago, Chile, from 1925 to 1929.

Miss Gray returned to New York from Chile and lived there until she moved to Washington to begin her career with the federal government. She was an administrative assistant with the RFC until 1954, when she transferred to the CIA. She retired in 1960.

During World War II, she was employed by the State Department in Turkey and later in Bulgaria.

She joined the Women's Overseas Service League in New York City in 1921. The organization is made up of women who served overseas during wartime. Miss Gray was president of its Washington unit from 1950 to 1953 and later served as a national vice president. She was national president from 1662 to 1964 and later held a number of other posts.

Miss Gray also worked in programs for the elderly at Sargent House, which is supported by the Episcopal Church.

She leaves no immediate survivors.