Collection documents the engineering firm of Parsons, Brinckerhoff, Quade and Douglas through reports prepared for a variety of clients.
Approximately 11,000 images collected by Thomas Norrell consisting of original photographic prints and photographic postcards, original film and glass plate negatives, and duplicate/copy photographic prints and negatives. The majority are external views of single locomotive engines of North American railroad and industrial companies. Images of international railroad company locomotives and of representative locomotives from various locomotive works and builders are also included. The collection contains a small number of subject-specific images covering such topics as train wrecks, funeral trains, experimental locomotives, miniature trains, and locomotives at the 1933 and 1939 World's Fairs.