The collection consists primarily of correspondence, photographs, project records, architectural drawings, legal documents, periodicals, news clippings and exhibition materials. The material held in this collection relates to architectural projects for Edgar J. Kaufmann by Frank Lloyd Wright, and the bulk of the material relates to Kaufmann's home, Fallingwater, at Bear Run, Pennsylvania. The collection documents the professional and personal relationship between the Kaufmann family and Wright, from the 1930s until the years preceding Wright's death in 1959.

This collection documents the life and career of Edgar Allen Tafel: New York architect, Frank Lloyd Wright historian, and one of the original apprentices of the Taliesin Fellowship from 1932. The collection primarily documents Tafel's professional activities and his later independent architectural career which was most prominent from 1965-1985. The collection is made up of nine series: Personal Papers, Correspondence, Writings, Professional Papers, Office Records, Project Records, Photographs and Slides, Audio-Visual Material, and Printed Material.

The collection of Frank Lloyd Wright Miscellanea is composed of transcripts of speeches, interviews, magazine and newspaper clippings by and about the world-famous architect.