▁and ▁express ▁trains . ▁As ▁America ' s ▁passenger ▁train ▁network ▁sh rank ▁due ▁to ▁un pro fit ibility , ▁Union ▁Pacific , ▁Rock ▁Island ▁and ▁Illinois ▁Central ▁Rail road ▁began ▁using ▁E 9 s ▁on ▁fre ight ▁trains . ▁ ▁Am tra k , ▁founded ▁in ▁ 1 9 7 1 , ▁bought ▁ 3 6 ▁E 9 As ▁and ▁ 2 3 ▁E 9 B s ▁from ▁the ▁Union ▁Pacific , ▁Mil w au kee ▁Road , ▁B & O ▁and ▁S CL . ▁Am tra k ▁used ▁the ▁E 9 s ▁until ▁ 1 9 7 9 ▁and ▁converted ▁some ▁E 9 B ▁units ▁to ▁steam ▁generator ▁and ▁head ▁end ▁power ▁cars . ▁ ▁Original ▁own ers ▁ ▁Sur v iving ▁examples ▁Fort y - two ▁E 9 ▁locomot ives ▁surv ive ▁today , ▁don ated ▁to ▁several ▁museum s ▁and ▁tour ist ▁rail ro ads . ▁ ▁Five ▁E 9 s ▁are ▁owned ▁by ▁the ▁Illinois ▁Railway ▁Museum , ▁in ▁Union , ▁Illinois . ▁A ▁number ▁of ▁rail ro ads ▁keep ▁a ▁small ▁number ▁in ▁service ▁for ▁ha uling ▁ins pection ▁spe ci als , ▁char ter ▁passenger ▁trains , ▁invest or ▁t ours , ▁and ▁other ▁special ▁trains . ▁ ▁The ▁Union ▁Pacific ▁Rail road ▁ro sters ▁three ▁E 9 s ▁( 9 5 1 ▁and ▁ 9 4 9 ), ▁and ▁a ▁B ▁unit , ▁ 9 6 3 B ▁( built ▁as ▁UP ▁E 9 B ▁ 9 7 0 B ) ▁in ▁their ▁her itage