Barbara Ann Bailar (1935 – 13 June 2023)[1][2] was an American statistician, who worked for many years at the United States Census Bureau but resigned in protest over the decision not to adjust its 1990 results.
[3] Bailar worked for nearly thirty years at the United States Census Bureau,[3] beginning in 1958.
She served as chief of research at the Census Bureau from 1974 to 1979, when she became associate director for Statistical Standards and Methodology.
[7] She had been one of the chief witnesses in an earlier lawsuit on the same issue for the 1980 census, testifying at that time that the difficulty of matching the sampled data needed for the adjustment with the full data from the census meant that the adjustment would not likely improve the accuracy of the result.
[9] In 1980, the United States Department of Commerce awarded her their Silver Medal for meritorious service.