Mystery InventorBefore you watch:
You are going to short slideshow about an inventor. Can you guess who it is from these clues?
1. He was born in 1847 and died in 1931 .
2. His middle name was Alva.
3. He was born in Ohio but did a lot of his work in New York.
4. He saved a boy from a train - and the boy's father trained him to be a telegraph operato.
5. You have at least one of his inventions in your home
Have you guessed the name of the inventor yet? Find out here: