U.S. War Department. Engineer Department, Washington

• Collection: Henry Clay Memorial Foundation papers
• Date: 1851 October 15
• Format: archival material

John M. Clay letter fragment

• Collection: Josephine Russell Erwin Clay family papers
• Date: 1851 February
• Format: archival material

Henry Clay to Henry Hart Clay, Ashland

• Collection: Henry Clay Memorial Foundation papers
• Date: 1851 May 19
• Format: archival material

Henry Clay to John M. Clay, Washington

• Collection: Henry Clay Memorial Foundation papers
• Date: 1851 January 13
• Format: archival material

Land Grant of William A. McDowell, signed by President Millard Fillmore

• Collection: Henry Clay Memorial Foundation papers
• Date: 1851 March 1
• Format: archival material

Henry Clay to Henry Hart Clay, Ashland

• Collection: Henry Clay Memorial Foundation papers
• Date: 1851 October 26
• Format: archival material

Henry Clay to unnamed recipient, Ashland

• Collection: Henry Clay Memorial Foundation papers
• Date: 1851 July
• Format: archival material

Henry Clay to John M. Clay, Washington

• Collection: Henry Clay Memorial Foundation papers
• Date: 1851 March 7
• Format: archival material

Henry Clay to the Reverend Jonathon Bullock, Ashland

• Collection: Henry Clay Memorial Foundation papers
• Date: 1851 July 15
• Format: archival material

Diary

• Collection: Henry Clay Memorial Foundation papers
• Date: 1851 April 24 - 1851 July 2
• Format: archival material

Henry Clay to Henry Hart Clay, Ashland

• Collection: Henry Clay Memorial Foundation papers
• Date: 1851 June 27
• Format: archival material

Nannie [Anne] Clay to Henry Hart Clay, Louisville

• Collection: Henry Clay Memorial Foundation papers
• Date: 1851 July 8
• Format: archival material

Henry Clay to Henry Hart Clay, Washington

• Collection: Henry Clay Memorial Foundation papers
• Date: 1851 January 18
• Format: archival material

G[uido] and Adeline Schmidt to Henry Clay, New York Custom House

• Collection: Henry Clay Memorial Foundation papers
• Date: 1851 April 12
• Format: archival material

Nannie [Anne] Clay to Henry Hart Clay, Louisville

• Collection: Henry Clay Memorial Foundation papers
• Date: circa 1851
• Format: archival material

Thomas Julian Smith Clay to Henry Clay, Louisville

• Collection: Henry Clay Memorial Foundation papers
• Date: 1851 June 3
• Format: archival material

Miscellaneous

• Collection: Ohio County, Kentucky records
• Date: 1834-1851
• Format: archival material

Bonds given by estate executors

• Collection: Ohio County, Kentucky records
• Date: 1804-1851
• Format: archival material

Warfield Clay compositions

• Collection: Laura Clay papers
• Date: 1850-1851
• Format: archival material

1850-1859

• Collection: Means family papers
• Date: 1851
• Format: archival material