Telegraph Invention

McFarland

The Telegraph: A History of Morse's Invention and Its Predecessors in the United States

Enslow Pub Inc

The Invention of the Telegraph and Telephone in American History

Capstone Press

Samuel Morse and the Telegraph (Inventions and Discovery) (English Edition)

Bloomsbury UK

The Victorian Internet: The Remarkable Story of the Telegraph and the Nineteenth Century's On-line Pioneers

Independently published

Samuel Morse and the Secret Code: A Fun and Educational Children’s Story About Samuel Morse, the Telegraph, Morse Code, and the Invention That Changed ... Ages 8-12 (Genius Inventors for Curious Kids)

Sandcastle

Telegraph (Amazing Inventions)                  

Captivating History

The Industrial Revolution: A Captivating Guide to a Period of Major Industrialization and the Introduction of the Spinning Jenny, the Cotton Gin, Electricity, and Other Inventions

The Invention of the Communication Engine 'Telegraph' (Invention-series) (English Edition)

Hutson Street Press

Journal Of The Telegraph, Volumes 1-2            

PowerKids Press

The Inventions of Granville Woods: The Railroad Telegraph System and the Third Rail (19th Century American Inventors)