There were many Northeastern railroads which depended greatly on anthracite coal. // --> , Delaware and Hudson if(MSFPhover) { MSFPnav34n=MSFPpreload("photographs/steam/_derived/photographs_Class_P-1.htm_cmp_industrial-blue-background010_hbtn.gif"); MSFPnav34h=MSFPpreload("photographs/steam/_derived/photographs_Class_P-1.htm_cmp_industrial-blue-background010_hbtn_a.gif"); } The late 1930s and World War II years saw a huge change in the way D&H trains were handled, from dragging heavy coal trains behind big 2-8-0s to moving merchandise consists behind swift 4-6-6-4 Challengers and dual-service, 75-inch-drivered 4-8-4s. Curiously, as Mr. Shaughnessy notes, despite holding distinction as operating the first steam locomotive, as well as boasting the longest railroad in the States by the fall of 1829, the D&H was slow to adopt the technology. hudson delaware locomotive railroad steam company american (John Shaw Collection), D&H 435TYPE: 4-4-0 (Double Cab)CLASS: G-4e NOTES: Manufactured by Schenectady Locomotive works for the Rensselaer & Saratoga in 1868, the locomotive was rebuilt in 1899 by the D&H Green Island Shops and was scrapped in January of 1930. 302 between 1973 and 1974. // -->