1. General orders. No. 38 Author(s): United States. Adjutant-General's Office, author. Publication: [Washington?] : [publisher not identified], [1862] Subject(s): TelecommunicationsSalaries and Fringe BenefitsAmerican Civil WarUnited StatesUnited States. Army.
2. General orders. No. 24 Author(s): United States. Adjutant-General's Office, author. Publication: [Washington?] : [publisher not identified], [1863] Subject(s): TelecommunicationsReimbursement MechanismsAmerican Civil WarUnited StatesUnited States. Army.
3. Letter of James F. Gregory, Lieut. Colonel and A.D.C., to Lieut. General P.H. Sheridan, concerning telegraphic code Author(s): Gregory, James F. (James Fingal), 1843-1897, author Publication: Washington : Government Printing Office, 1886 Subject(s): TelecommunicationsMilitary ScienceUnited StatesUnited States. Army.