J. Elfreth Watkins

1852 – 1903

• The semi-centennial of the Pennsylvania Railroad
• Camden and Amboy railroad
• Contributions of the Department of Transportation and Engineering to the Ohio Valley Centennial Exhibition, 1888
• History of the Pennsylvania Railroad Company, 1846-1896
• History of the Pennsylvania Railroad Company, 1846-1896, in its relation to the Pennsylvania state canals and railroads and the consolidated system east and west of Pittsburgh
• Report on the section of steam transportation in the U.S. National Museum for the year ending June 30, 1886
• The place of the electrical industries in history
• The Ramsden dividing engine
• The transportation and lifting of heavy bodies by the ancients