Abstract The research records of NDSU Professor of History Thomas Isern consist of surveys of the historic properties of Buffalo, N.D. in 2001-2002. These architectural analyses consist of photos, maps, and reports. In addition to the analyses, the collection contains four folders of related information, including a summary of a 1995 survey and Isern and Hoffer’s 2002 updated summary. There are two series in the collection: Background and Surveys.