In the Western Union in the 30s of the 20th century worked 14 thousand couriers delivering telegrams. In April 1851 companions registered in Albany New York and Mississippi Valley Printing Telegraph Company (NYMVPTC), which included founded two years before New York State Printing Telegraph Company. In 1933, by the Western Union Company were invented "singing telegrams". In 1856, in 7 years after the foundation of New York State Printing Telegraph Company, the company changed its name to Western Union Telegraph Company.