Holger Cahill was national director of the Federal Art Project. Other administrators included Audrey McMahon, director of the New York Region (New York, New Jersey, and Philadelphia); Clement B. Haupers, director for Minnesota;[12] George Godfrey Thorp (Illinois), [13] and Robert Bruce Inverarity, director for Washington. Regional New York supervisors of the Federal Art Project have included sculptor William Ehrich (1897-1960) of the Buffalo Unit (1938-1939), project director of the Buffalo Zoo expansion.[14]