Telegraph engineers and inventors

American inventor and businessman (1847–1931)

British scientist and inventor (1802–1875)

Welsh-American scientist and musician (1831–1900)

French engineer (1845-1903)

American inventor

Russian inventor of Baltic German origin (1786-1837)

English inventor (1806-1879)

French inventor (1876–1963)

Danish photographer, songwriter and director of telegraph networks (1810–1877)

English surgeon and electrical engineer (1816–1890)

British electrical engineer

Croatian engineer and inventor