People: Greenewalt, Crawford H., 1902-1993 - Philadelphia Area Archives Search Results

Extent:: 23.6 linear feet (40 containers)
Abstract:: Crawford Hallock Greenewalt (1902-1993) was a chemical engineer and the President of the DuPont Company from 1948 to 1962. He had a passion for the natural sciences, and combined his love of ornithology with photography. He was especially known for his high speed photographs of hummingbirds. His ornithological interests included bird songs, the radiance of hummingbird feathers and the evolution of shapes and sizes of birds in relation to their flight abilities. The Crawford H. Greenewalt papers document Greenewalt's personal study of ornithology, primarily his work on hummingbirds. The collection dates from 1951 to 1993 and consists primarily of photographs taken by Greenewalt, and technical data collected by Greenewalt. The images photographed by Greenewalt exist in many different formats throughout the collection, including prints, negatives, and slides. The technical data in this collection represents Greenewalt's research into the physiology of hummingbirds, and the development...(see more)

Held at: Academy of Natural Sciences, Philadelphia [Contact Us]

Extent:: 20.33 linear foot (21 boxes), 12 volume (12 scrapbooks), 16 oversize removal (13 folders and 3 items), 16 audio cassette, 10 1/4 inch audio tape, 1 vhs tape, 1 betamax tape, and 6 phonograph record
Abstract:: Harold Brayman (1900-1988), a political journalist and former director of the Public Relations Department of Du Pont Company for 21 years, helped establish a concept of public relations which was widely emulated throughout the United States. The Harold Brayman papers, spanning from 1900-1991, document the successful dual career of one man in the fields of journalism and public relations. The collection includes correspondence, memoranda, press releases, speeches, newspaper clippings and articles, manuscripts for publications, photographs, and memorabilia.

Held at: University of Delaware Library Special Collections [Contact Us]

Extent:: 6.75 linear foot (8 boxes), 9 phonograph record (8 acetate discs and 1 aluminum disc), and 1 oversize removal (1 oversized folder)
Abstract:: Harold Brayman (1900-1988), a political journalist and former director of the Public Relations Department of Du Pont Company for 21 years, helped establish a concept of public relations which was widely emulated throughout the United States. The Harold Brayman papers supplement, spanning from 1914-1992, contains substantial editions to the original collection, documenting Brayman's dual careers in the fields of journalism and public relations. The collection includes correspondence, memoranda, press releases, speeches, newspaper clippings and articles, photographs, memorabilia and books.

Held at: University of Delaware Library Special Collections [Contact Us]

Extent:: 3.1 linear foot (4 boxes)
Abstract:: The Delaware Miscellany collection includes three large, green buckram-bound volumes compiled by William Ditto Lewis, which contain various documents pertaining to the history of Delaware and the surrounding region, and the University of Delaware.

Held at: University of Delaware Library Special Collections [Contact Us]

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