Alexander Mitchell
Irish engineer
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Alexander Mitchell, was an Irish engineer who from 1802 was blind. He is known as the inventor of the screw-pile lighthouse.
Born in Dublin, his family moved to Belfast while he was a child, and he received his formal education at Belfast Academy... Wikipedia
Born: April 13, 1780, Dublin, Ireland
Died: June 25, 1868 (age 88 years), Glen Devis, Belfast