While working as a railway newsboy on the Detroit - Port Huron line, Tom Edison often stopped in Mount Clemens. He made friends with station agent J. U. MacKenzie and in 1862 saved MacKenzie's young son from death by a train. In gratitude Mr. MacKenzie taught Tom Edison railroad telegraphy. From his training Tom became a qualified railroad telegrapher and worked during the 1860s at this occupation. Some of his earliest inventions were based on the telegraph.