The Agricultural Engineering building was severely damaged by fire in 1941 and was rebuilt the next year. In 1975 it was named Davidson Hall to honor the former head of the department, J. Brownlee Davidson. Davidson Hall was demolished in 2015 when the Agricultural Engineering Department moved to the new Sukup Hall and Elings Hall. J. Brownlee Davidson joined the faculty in 1905. He served as Professor and Head of Agricultural Engineering from 1907 to 1915 and 1919 to 1946. Davidson House in North Helser Hall was also named in his honor. (J. Brownlee Davidson was a 1904 graduate of the University of Nebraska and initiated as a member of Tau Beta Pi by Iowa Alpha on January 22, 1914)