Esther C. Brunauer worked in the U.S. State Department and was Senator Joseph McCarthy's Case #47 and Lee list #55; Presented by McCarthy as Case Number 47 and Number 55 on the Lee list. She belonged to a number of Communist front organizations, including chairman of a meeting of the American Friends of the Soviet Union where the main speaker was a well known Communist and writer for the Daily Worker. "Brunauer was a signer of a call to the annual meeting of the American Youth Congress which was publicly known to be completely dominated by the Communist Party. She admitted that her husband had Communist connections and had been a member of the Young Communist League." Brunauer was suspended by the State Department in 1951 pending adjudication of security proceedings against her. On June 16, 1952, she was discharged by the State Department as a security risk.
- McCarthy & His Enemies, The Record And Its Meaning ( Buckley, Jr., William F. and Bozell, L. Brent (1954, 1995 Printing). McCarthy & His Enemies, The Record And Its Meaning. Regnery Publishing Inc.. ISBN 0-89526-472-2. )
- FBI Silvermaster file Vol. 64 August 1946, pg. 108.
- FBI Silvermaster file Vol. 134 November—December 1947, pgs. 66-67.