Big Boy: References & Edit History
More Articles On This Topic
Article Contributors
Primary Contributors
-
The Editors of Encyclopaedia Britannica
Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree. They write new content and verify and edit content received from contributors.
Other Encyclopedia Britannica Contributors
Article History
| Type | Description | Contributor | Date |
|---|---|---|---|
| Article revised and updated. | Jul 22, 2026 | ||
| Invalidated site: RailGiants Train Museum - Union Pacific "Big Boy" 4014. | Jun 04, 2024 | ||
| Add new Web site: Forney Museum of Transportation - Big Boy. | Apr 11, 2023 | ||
| Add new Web site: RailGiants Train Museum - Union Pacific "Big Boy" 4014. | Feb 17, 2023 | ||
| Article thoroughly revised. | Jul 07, 2011 | ||
| Media added. | Aug 14, 2008 | ||
| Article revised. | Jan 29, 1999 | ||
| Article added to new online database. | Jul 20, 1998 |
View Changes:
Article History
Revised:
By: