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The Union Pacific Big Boys will be built by the Builder now producing the Southern Pacific Cab Forwards. Please watch
for updates on
this project.
Chick here to watch 4014's move from CA to WY & the rest of UP's Steam
Click Here to watch 4014's Progress
.According to Ed Dickens Jr.,
Union Pacific's senior manager of heritage operations, the legendary name was coined by an unknown worker who scrawled "Big
Boy" in chalk on the front of one of the engines as it was being built. It became the nickname thereafter. The
25 Big Boys were built in two groups. The first group, called "class 1", were built starting in 1941. They were numbered 4000-4019.
The second group, "class 2", were built in 1944. They were numbered 4020-4024. The last revenue freight pulled by a Big Boy
was in July of 1959. Most were retired in 1961. The last one was retired in July of 1962. As late as September, 1962, there
were still four operational Big Boys at Green River, WY. Click
on below Big Boy Photo to go to Dr. Richard Leonard's Rail Archive Website with hundreds or Beautiful Railroad Photos. All Photos are copywrited and used with
Dr. Leonard's permission
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| 4024 at Laramie, WY, August 1957 Photo by David V. Leonard |
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| 4023 at Laramie, WY, August 15, 1957 - Richard Leonard Photo |
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| 4011 at Laramie, WY, August 16, 1957 - Richard Leonard Photo |
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| 4010 at Laramie, WY, August 16, 1957 - David V. Leonard Photo |
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| 4008 at Laramie WY, August 1957 - David V. Leonard Photo |
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| 4008 at Laramie WY, August 1957 - David V. Leonard Photo |
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| 4007 on the hill east of Laramie WY, August 17, 1957 |
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| 4005 at Laramie WY, August 16, 1957 |
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| 4002 at Laramie WY, August 17, 1957 |
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| 4002 at Laramie WY, August 17, 1957 |
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