Crawford Hallock Greenewalt (1902-1993) was a chemical engineer and the President of the DuPont Company from 1948 to 1962. The collection consists of photographs relating to the career of Crawford H. Greenewalt. The album consists of photographs of a trip Greenewalt made to Argentina in 1956 related to expansion plans for the Ducilo plant. The views were primarily taken at the Buenos Aires airport and at a banquet meeting.

Theophilus P. Chandler (1845-1928) was an architect, artist and professor. He designed churches, houses and bridges, trainstations and other structures, such as the bear pits at the Philadelphia Zoo. He married Sophie M. du Pont (1851-1931), daughter of Henry du Pont (1812-1889) and Louisa Gerhard (1816-1900), in March 1873. The collection consists of 4 wash drawings of various scenes at Eleutherian Mills, then the residence of Henry du Pont (1812-1889).