Lucy Margaret Rozier
The History Channel
, here is a
to a good video of the why and how of the telegraph, featuring
Len Bruno of the Library of Congress.
is about a young boy
using Morse code
in the 1920's for a real live rescue.
Lynne Barasch. Her website is
The development of the telegraph and how it changed the world are given in this Elon University
of Morse code and the telegraph is by Billy Miller, a student at
the College of Wooster in 2015. The bibliography is instructive.
Other useful sites
The Electric Telegraph,
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