Peter Cooper's Train Small 320×160 Medium 640×320 Large 1024×512 Download Tiff Original 2400×1199 | (2.8 MB) Description Peter Cooper manufactured the first steam powered railroad locomotive made in America, which was called Tom Thumb. Keywords locomotive, Peter Cooper, Tom Thumb, train Galleries Rail Transportation Source: Benson John Lossing, ed. Harper's Encyclopedia of United States History (vol. 7) (New York, NY: Harper and Brothers, 1912)