United States. Census Office. 7th census, 1850.

• History and statistics of the state of Maryland
• The seventh census
• 1850 census of Edgar County, Illinois
• 1850 census of Lake County, Illinois
• 1850 census of Warwick County, Virginia
• 1850 census of Williamson County, Tennessee
• 1850 census, Monroe County, Mississippi
• 1850 Federal census of De Kalb County, Illinois
• 1850 Federal census of Grundy County, Illinois
• 1850 Federal census of Hardin County, Illinois
• 1850 Federal census of Henderson County, Illinois
• 1850 Federal census of Ogle County, Illinois