Sarah Knox Harris Sager of Port Gibson was descended from John Sevier, first governor of Tennessee, President James K. Polk, and a niece of Mrs. Andrew Jackson. Mrs. Sager's mother was Jennie Vertner Sevier Harris, a great-granddaughter of Governor Sevier.

The Sager Collection includes thirty folders containing business and personal correspondence and some printed material. The oldest document in the collection is a deed made out to Adam Meek by the state of North Carolina on July 29, 1793. The collection's thirty-one volumes include children's books, recipe books, scrapbooks, memorandum books, and financial records books. The scrapbooks contain newspaper clippings, poems, and pictures. Folder 30 in Box 2 contains a genealogical chart of the Donelson family of which Andrew Jackson's wife Rachel was a member.

The collection is arranged in the following manner:

• Box 1
  • Business correspondence, personal correspondence, H-J, (folders 1-16).

• Box 2:
  • Correspondence, J-S, printed material, Donelson family genealogy, (folders 17-30).

• Box 3
  • Volume 1. Scrapbook, n.d.
  • Volume 2. Scrapbook, n.d.

• Box 4
  • Volume 4. Financial records, Jan., 1876-April, 1889.
  • Volume 5. Financial records, n.d.
  • Volume 6. Memorandum book, n.d.
  • Volume 7. Receipt book for 1884.
  • Volume 8. Income record for 1887.
  • Volume 23. Grimm's Household Fairy Tales, Sadie Harris (Sager), 1892.
  • Volume 28. The Master's Violin, Sadie Harris (Sager), 1906.

• Box 5
  • Volume 22: Little Gossips, Sadie Harris (Sager), 1888.
  • Volume 24. Sunny Days, Sadie K. Harris (Sager), 1887.
  • Volume 27. Mama's Story, Sadie Harris (Sager), 1889

• Box 6
  • Volume 9. Memorandum book, n.d.
  • Volume 13. Account book of Mrs. J. V. S Harris, 1887-1888.
  • Volume 14. Memorandum book, pile record, B. R. & E. R. R., n.d.
  • Volume 15. Memorandum book, n.d..
  • Volume 16. Bank book, 1908-1910.
  • Volume 25. Old Stories for Young Folks, George Sevier Clarke, 1876.
  • Volume 26. Album, poems, drawings, 1833.
  • Volume 29. Recipe book, n.d..

• Box 7
  • Volume 10. Port Gibson Bank, account book of Mrs. J. V. Harris for 1904.
  • Volume 11. City Savings and Trust Co. (Vicksburg), account books of Mrs. E. S. Jefferies, 1906-1920.
  • Volume 12. Account book of Henry Hoacks for 1906.
  • Volume 17. Medical notebook, \"Valuable Receipts,\" Dr. George Washington Sevier, n.d..
  • Volume 18. Sketch book, E. S. J., n.d..
  • Volume 19. Scripture textbook, n.d..
  • Volume 20. Recipe book, n.d.
  • Volume 21. My Pet Book, Georgie Clarke, 1878.

• Box 8
  • Volume 30. Scrapbook, n.d.
  • Volume 31. Scrapbook, n.d.