Union Pacific Railroad

The Union Pacific Railroad {{nyse|UNP}} is the largest railroad in the United States. Its primary AAR reporting mark is UP. Richard K. Davidson, who began his career as a Missouri Pacific brakeman in 1960, has headed Union Pacific Railroad since 1991 and parent Union Pacific Corporation since 1997. James R. Young is president and chief operating officer and Richard "Dick" K. Davidson is the CEO of the Railroad.

Company officers

Presidents of the Union Pacific Railroad:

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• Sidney Dillon (1874–1884)
• Charles F. Adams (1884–1890)
• Sidney Dillon (1890–1892)
• Jay Gould (several months in 1892)
• E. H. Harriman (1904–1909)
• Carl R. Gray (1920–1937)
• William Jeffers (1937–?)
• John Kenefick (1971–1986)
• Richard K. Davidson (1991–1996)
• Ron Burns (several months in 1996)
• Jerry Davis (1996–1998)
• Ike Evans (1998–2004)
• James R. Young (2004–Present)

Chief Executive Officers, Presidents, and Chairmen of the Union Pacific Corporation (Parent Corporation of the Railroad)

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• John Kenefick (several months in 1986)
• Drew Lewis (1986–1997)
• Richard K. Davidson (1997–Present)