Mary Helen Mulry (also published as Mary Mulry-Liggan) is an American demographic statistician who works for the United States Census Bureau and has published scholarly works about census accuracy.[1]
Mulry majored in mathematics at Texas Christian University, graduating in 1972 as the university's top mathematics student.[1][2] She went to Indiana University Bloomington for graduate study in mathematics, earning a master's degree in mathematics in 1975, a second master's degree in statistics in 1977, and a Ph.D. in mathematics in 1978.[1] Her dissertation, Equivariant -Extension Properties, concerned equivariant topology and was supervised by Jan Jaworowski.[3][4]
Since completing her doctorate, Mulry has alternated between working for industry (at the System Planning Corporation, Lockheed Martin, M/A/R/C Research, and as an independent consultant) and for the United States Census Bureau (1980–1983, 1984–1997, and 2001–present). Since 2001 she has been a principal researcher for the Census Bureau, in the Center for Statistical Research and Methodology.[1]
Mulry chaired the methodology section of the Washington Statistical Society in 1986–1987.[5] She was vice president of the American Statistical Association from 2011 to 2013.
Mulry was elected as a Fellow of the American Statistical Association in 1994.[6]