We would wait until the next magazine was on the stands to get the news in those days, unless you lived close by. Thanks for posting George, fun read.
One word on corner workers, and I always try to give them the praise they deserve, because nearly all are volunteer and they work all day in all weather to keep us safe. However at today's tracks here, where cars also race, the towers are far from the track edge to keep them safe. Plus they are not to leave their posts unless the race is stopped. As a result, motorcycle crashes are unattended until an ambulance arrives. In the old days we had marshalls on track edge showing oncoming riders all manner of arm/flag motion to get the message out. A marshall could be with a downed rider quickly.
Obviously this put them in danger and needed to be changed. But with stations so far from the track even seeing a flag is sometimes difficult. I think the flagman in the corner of this story may have been either covering 2 corners, or otherwise way too far from where he could be useful.