Modern Electrics, August, 1910, page 257:

RETURNS  FROM  FIGHT  SENT  BY  WIRELESS.

BY  ELLERY  W.  STONE.

    Amateur and professional operators along the Pacific Coast near San Francisco received returns by wireless by rounds from the Jeffries-Johnson fight, which was fought at Reno, Nevada, on July Fourth, at the same time that the bulletins were being posted in front of the large newspaper offices.
    The returns were flashed from TG, a large wireless station in San Francisco at the offices of the Western Wireless Equipment Company.
    The returns were also received by several ships out at sea, among them being the Oceanic Steamship Company's liner "Sierra" on her way to San Francisco from Honolulu, whose operator gave out the fight bulletins to the passengers as soon as they were received.
    At 3.39 P. M. TG was sending out returns from the twelfth round when he suddenly started on the fifteenth, saying that Jeff was getting wobbly and that Johnson had knocked him out.
    The news was posted on the bulletins at 3.41. Later Hillcrest, the United Wireless Co's big 15 K. W. station at San Francisco, sent out the news of Johnson's victory as did also the government station at the Farallon Islands.