Diary of Alfred Vail, September 8 and 9, 1848 Entries

ID: SIA2011-0824

Creator: Vail, Alfred

Form/Genre: Document

Date: September 8-9, 1848

Citation: Smithsonian Institution Archives, Record Unit 7055, Box 5, Folder: 1

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Alfred Vail's diary entries for these two September 1848 days record the weather and his daily activities. His activities relate to the development and upkeep of the telegraph lines that he oversaw.


Morse, Samuel Finley Breese 1791-1872


Historic Images of the Smithsonian


  • Alfred Vail was a key partner to American inventor Samuel Morse and is credited with designing the machine and alpha code used in the creation of the electromagnetic telegraph.
  • For other materials relevant to Vail's work, see Negative Numbers SIA2011-0825 to SIA2011-0830. For letters between Vail, Morse, and first Smithsonian Secretary Joseph Henry, see Negative Numbers SIA2011-0814 to SIA2011-0823.

Contained within

Smithsonian Institution Archives, Record Unit 7055, Box 5, Folder: 1

Contact information

Institutional History Division, Smithsonian Archives, 600 Maryland Avenue, SW, Washington, D.C. 20024-2520, SIHistory@si.edu


September 8-9, 1848

Restrictions & Rights

No restrictions


  • Electric apparatus and appliances
  • Telegraph
  • Inventions
  • Science
  • Telecommunication
  • Electromagnets
  • History
  • Electromagnetic telegraph
  • Science--History


United States


  • Document
  • Paper

ID Number


Physical description

Number of Images: 1; Color: Color; Size: 8.5w x 10.25h; Type of Image: Document; Medium: Paper

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