Reginald Aubrey Fessenden (1866-1932)
On Christmas 1906 Reginald Aubrey Fessenden realised the first public voice broadcast ever at his Radio-Telephone Installation at Brant Rock. Because of this his name is often mentioned in relation to the invention of the radio. But, as Dave Riley notes, there's more to this man who also built the first power generating station at Niagara Falls and developed the fathometer.