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Overview Henry Ellis Warren was an inventor, who developed the first battery-powered clock and the Telechron Clock, the first clock to run on alternating current power. In 1957, his widow, Edith Smith Warren, donated 40 acres of their farm in Ashland, Massachusetts to Northeastern University. The grounds were named the Warren Center for Physical Education and Recreation and hosted an overnight summer camp, Camp Henry Warren, for handicapped and underprivileged children, and children of Northeastern...