Alfred Victor du Pont (1900-1970) was a partner in the Wilmington, Delaware, architectural firm of Massena and Du Pont, and he was the third child of Alfred I. du Pont (1864-1935) and his first wife Bessie Gardner du Pont (1864–1949). This small collection includes both business and personal papers. The largest portion is made up of Alfred V. du Pont's correspondence with his father, Alfred I. du Pont.

The architectural firm of Victorine & Samuel Homsey, Inc. was founded in Wilmington, Delaware, in 1935. It was one of the first husband-and-wife architectural practices in the U.S.

William Lescaze (1896-1969) was a Swiss-born American architect. He is best known for introducing the International Style of architecture to the United States. This is a poster for the exhibition William Lescaze and the Rise of Modern Design in America at the National Academy of Design in New York.