Union Pacific Railroad Co. family tree

 
  Union Pacific Railroad Co. 9/1862
  140v  
Western Pacific Railroad Co.
 140h 140trd 6/1987
  140v  
Chicago and Northwestern Railway Co.
 140h 140trd 6/1995
  140v  
Missouri Pacific Railroad Co.
 140h 140trd January 1, 1997
  140v  
The Denver and Rio Grande Western Railroad Co.
 140h 140trd 6/1997
  140v  
St. Louis Southwestern Railway Co. (Cotton Belt)
 140h 140trd 9/1997
  140v  
Southern Pacific Railroad Co.
 140h 140trd 2/1998
  140v  
  Union Pacific RailRoad Co.  
Source: World Wide Web
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