Interior design sketches and detail studies from Daniel Lashen's studies at Parsons School of Design in New York and in Italy. Lashen graduated from Parsons in 1950.

Dorothy Haon (1898-1995) attended the New York School of Fine and Applied Art (later, Parsons School of Design) in 1923-1924, and went on to careers in fashion design and merchandising. The collection, which spans the late 1930s through the 1950s, includes working sketches and notes, cloth patterns, fabric samples, and business records. Also included is work by Dorothy's sister, Marion Haon.

Letters from Agustin Ruiz de Santayana have typescript carbon English translations. The translations are not on microfilm.

The collection consists of student work and related documents kept by Ina Dell Marvin (1893-1991) while studying in the Paris Ateliers of the New York School of Fine and Applied Art (now, Parsons School of Design). Includes class reference materials, clip books, correspondence, diploma, London itinerary, lecture notes, photographs and renderings of furniture, decorative pieces, and interiors.

Lyman Martin (1908-2003) graduated from Parsons School of Design in 1939 and joined Thedlow, an interior decoration firm. At Thedlow, Martin created interiors and watercolor renderings, and designed rugs and murals. In 1969, Martin became president of Thedlow, remaining until its closure in 1979. The collection includes student work, interior drawings, a travel diary, floorplans, photographs, clippings, and exhibition files.

This collection is primarily concerned with Prof. James Renwick and his professional correspondence and papers, both as Professor of Natural Philosophy (Physics) at Columbia College and as a leading engineer. Many certificates of membership in honorary societies are included. There are letters from Washington Irving (1783-1859) to Prof. Renwick and to his mother, Jane Jeffrey Renwick, pertaining to contemporary events and Irving's own activities. The letters to Mrs. Renwick are about the travels and experiences of Irving and Renwick abroad. The collection also covers the affairs of the Prof. Renwick's grandfather, including documents concerning his land grants in New York State, and those of James Armstrong Renwick, including his valedictory address at Columbia College in 1876 and his class reunion in 1916. There are many legal documents, letters, and manuscripts of various members of the Renwick and Brevoort families; among these are Prof. Renwick's notes on his family genealogy and a memoir of Jane Jeffrey Renwick. Correspondents include Clement Clarke Moore, John A. Dix, Martin Van Buren, Secretary of State John Forsyth, and Secretary of the Navy James K. Paulding. There is one letter from Sir Edward Sabine (1788-1883), President of the Royal Society, giving his views on the American Civil War.

Walker O. Cain (1915-1993) was an American architect associated with the firms of McKim, Mead & White (1940-1961), Steinmann, Cain & White (1961-1965), Steinmann & Cain (1965-1967), Walker O. Cain & Associates (1967-1978), and Cain, Farrell and Bell (1978-1986). Collection consists chiefly of travel sketches, cartoons, invitations, and other ephemera. The collection also includes correspondence with Alexander Calder and photographs of the sculptor and his works; photographs and printed materials related to the firm of McKim, Mead & White; Scrapbooks; Medals; and a few architectural drawings.