Sibley and the Western Union would organize other telegraph companies to build the line.

On January 11, 1864, the Nebraska Territorial Legislature incorporated the Pacific Telegraph Company,[1] which was then organized on April 17, 1861, in Rochester, New York.

The Missouri and Western Telegraph Company had already completed a line from Brownville to Fort Kearny (both in Nebraska Territory), via Omaha.

[4][5][6] Brownville was stated as the eastern terminus for the telegraph line in Sibley's contract with the federal government.

[7] Edward Creighton managed construction for the company, which started in Nebraska Territory on July 4, 1861, and simultaneously from Salt Lake City a week later.