Collection is composed of 69 lantern slides dating from approximately 1888 to 1950. The majority of the slides are photographs of paintings by John Hafen. There are also two slides of a painting by Rose Hartwell and two slides of paintings by John Hafen's son, Virgil Hafen. There are also two portraits on John Hafen, one by Will Vawter and the other photographer not identified. There is also a photograph taken by George Edward Anderson of John Hafen's son, Joseph, and John's wife, Thora.

Contains object worksheets, provenance records, and correspondence concerning the Weissenbach collection. Materials date from approximately 1978.

The personal and professional papers of Minerva Teichert, along with the personal papers of Herman Teichert, Laurie Teichert Eastwood, and Marian Eastwood Wardle, as they relate to Minerva Teichert.

Correspondence, sketchbooks, research files, autobiographical files, scrapbooks, and news clippings. Also includes diaries, address and memorandum books, and financial records. Most letters were exchanged with family members and close friends. Primary correspondents included his son, Mahonri Sharp Young; his first wife, Cecilia Sharp Young; and Mary Lightfoot Tarleton, whom he met in Paris after Cecilia died in 1917. Research files include extensive information on other artists.