The papers of painter and educator Albert Bloch measure 17.9 linear feet and date from 1873 to 2014. The collection documents his career as an artist and university professor in Lawrence, Kansas, as well as his time in Munich, Germany, as part of the Blue Rider group of German Expressionists. The collection includes biographical material, extensive personal and professional correspondence, writings, personal business records, exhibition files, printed material, photographs, and artwork. Throughout the collection are records maintained by his widow Anna Bloch on the exhibition, sale, and research of Bloch's work after his death.

The records of the New York Tibor de Nagy Gallery measure 43.9 linear feet and date from 1941-2016. The records document the activities of the gallery through business records and correspondence, exhibition files, artist files, financial and legal records, inventory records, and a small amount of records of the Houston Branch.

The Scurlock photographic studio was a fixture in the Shaw area of Washington, DC from 1911 to 1994, and encompassed two generations of photographers, Addison N. Scurlock (1883-1964) and his sons George H. (1920- 2005) and Robert S. (1916-1994). Series 5 primarily consists of color negatives, but occasionally includes order forms, envelopes, and other photographic materials associated with the order. An overview to the entire Scurlock collection is available here: Scurlock Studio Records

Semi Joseph Begun was a pioneer in magnetic recording. The papers document Begun's professional career in the field of magnetic recording.

The Scurlock photographic studio was a fixture in the Shaw area of Washington, DC. from 1911 to 1994, and encompassed two generations of photographers, Addison N. Scurlock (1883-1964) and his sons George H. (1920- 2005) and Robert S. (1916-1994). Series 4 materials document the clients and individuals whose photographs were taken by the Scurlock Studio and a wide variety of subject matters. An overview to the entire Scurlock collection is available here: Scurlock Studio Records

The Scurlock photographic studio was a fixture in the Shaw area of Washington, D.C. from 1911 to 1994, and encompassed two generations of photographers, Addison N. Scurlock (1883-1964) and his sons George H. (1920- 2005) and Robert S. (1916-1994). Subseries 4.8 consists of black and white silver gelatin negatives. An overview to the entire Scurlock collection is available here: Scurlock Studio Records

A New York bookseller, Warshaw assembled this collection over nearly fifty years. The Warshaw Collection of Business Americana: Accounting and Bookkeeping forms part of the Warshaw Collection of Business Americana, Subseries 1.1: Subject Categories. The Subject Categories subseries is divided into 470 subject categories based on those created by Mr. Warshaw. These subject categories include topical subjects, types or forms of material, people, organizations, historical events, and other categories. An overview to the entire Warshaw collection is available here: Warshaw Collection of Business Americana

A New York bookseller, Warshaw assembled this collection over nearly fifty years. The Warshaw Collection of Business Americana: Books forms part of the Warshaw Collection of Business Americana, Subseries 1.1: Subject Categories. The Subject Categories subseries is divided into 470 subject categories based on those created by Mr. Warshaw. These subject categories include topical subjects, types or forms of material, people, organizations, historical events, and other categories. An overview to the entire Warshaw collection is available here: Warshaw Collection of Business Americana

The records of the Nicholas Wilder Gallery of Los Angeles measure 2.4 linear feet and date from 1944 through 1984, with the bulk of materials dating from 1968-1979. Scattered documentation of the contemporary art gallery's fourteen years of operation include artists' inventory cards, photographic transparencies, letters and correspondence, invitations, notes, business and financial documents, and printed materials.

A New York bookseller, Warshaw assembled this collection over nearly fifty years. The Warshaw Collection of Business Americana: Periodicals forms part of the Warshaw Collection of Business Americana, Subseries 1.1: Subject Categories. The Subject Categories subseries is divided into 470 subject categories based on those created by Mr. Warshaw. These subject categories include topical subjects, types or forms of material, people, organizations, historical events, and other categories. An overview to the entire Warshaw collection is available here: Warshaw Collection of Business Americana