Baldwin Locomotive Works was a manufacturer of railroad locomotives from 1825 until 1972. The company was originally located in Philadelphia and then later moved to Eddystone, Pennsylvania. This album contains twenty two photographs of Baldwin Locomotive Works train engines, train cars, and parts. The album appears to have been created by company President S.M. Vauclain for the Trades Exhibit at the Constitutional Centennial Celebration.

Samuel Vauclain (1856-1940) was an engineer, inventor, and was president of Baldwin Locomotive Works from 1919 to 1929. This collection contains album pages with snapshot photographs recording a month long Canada-U.S. transcontinental railroad voyage taken in July and August 1922 by Mrs. and Mrs. Samuel Vauclain, their daughter, and granddaughter in their private car, "Manhattan."