> “He saw there were old World War II teletype machines not being used,” said his daughter. “Another deaf engineer in California had come up with the way to sen

> “He saw there were old World War II teletype machines not being used,” said his daughter. “Another deaf engineer in California had come up with the way to send signals over phone lines. My dad came up with the coupler component the teletype needed. He then pressed Western Union to provide the old machines to deaf people and Bell telephone to use them on their lines.” Another TDD pioneer, James Marsters, is described here: https://www.nytimes.com/2009/08/23/us/23marsters.html https://www.nytimes.com/2009/08/23/us/23marsters.html