Union County 1870 Census

• 1870 Census Code
• Oro Dell P.O. - pages 385a -387a
• La Grande P.O. - pages 387b -389b
• Oro Dell P.O. - pages 390a - 390b
• La Grande P.O. - pages 391a - 392a
• Oro Dell P.O. - pages 392b
• La Grande P.O. - pages 393a -393b
• Summerville P.O. - pages 394a - 396a
• La Grande P.O. - pages 396b - 398a
• Summerville P.O. - pages 398b -400b
• La Grande P.O. - pages 401a - 401b
• Union P.O. - pages 402a - 416b
  (the portion that formed the corridor toward the Snake River/Idaho border is included somewhere in Union P.O.) The corridor was transferred to Baker County after the 1900 census.

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