Figure 4. — Full sized operable replica of Stevens' locomotive, built in 1 928 by 

 Pennsylvania Railroad Co., being demonstrated at Hoboken, N. J., on November 

 23, 1928. 



The design of these repUcas is based in part on the recol- 

 lections in the 1880's of the grandson of John Stevens, Dr. 

 Francis B. Stevens, who was a frequent passenger on the 

 original locomotive in 1825 at the age of 1 1. These recollec- 

 tions are contained in letters from Dr. Stevens to J. Elfreth 

 Watkins, onetime curator of transportation and engineering 

 of the National Museum. Stevens' letters, dated March 30, 

 1883, January 17, 1888, and November 19, 1892, are now 

 in the archives of the Museum. 



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