Form: Black-and-white slides - 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:: .1 linear foot (1 folder) and 1 audio cassette
Abstract:: Script, audio cassette and 135 black-and-white and color slides containing the audio/visual presentation, "Forward Women from Delaware's Past," created by Delaware's Governor's Commission on the Status of Women.

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

Extent:: 5.5 linear foot (7 boxes) and 3 oversize box
Abstract:: This collection contains materials relating to Malcolm L. Mackenzie's publicity firm Malcolm L. Mackenzie & Associates and Mackenzie's personal involvement with the Kalmar Nyckel Foundation, other local cultural institutions, and his interests in general maritime history and historic ships. Materials include publicity materials, written reports, correspondence, meeting minutes, newspaper clippings, facsimile maps, newsletters, photographs, photograph negatives, slides, and sailing and maritime history books. The collection also includes personal papers such as photographs albums, scrapbooks and Mackenzie's ships log, 1946 to 1948, of voyages to ports in the United States, the Mediterranean, the Caribbean, and Europe while serving as a Second Mate in the Merchant Marine.

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

Extent:: 20 linear foot and 7 oversize box
Abstract:: GDA Companies, Inc., was a corporate communications and design business formed by Richard and Karin Florschutz and based in Wilmington, Delaware. It grew out of Graphic Design Associates, Inc., which was founded by the couple in 1979. GDA Companies records comprises administrative and organizational files as well as numerous design samples created by the organization for largely Delaware-based businesses, including multiple, large pharmaceutical enterprises, between 1979 and 2000. The collection also includes pre-GDA Richard Florschutz design work, art, and ephemera, dating circa 1969-1979.

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

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