Bevan Roth was the salesman and engineer.
Bevan had been there since the 50s and he was a huge sports fan. He would get his name (and the station's name) on the Mariner network by bringing a bag of Walla Walla sweet onions (known as Walla Walla Sweets) to the team broadcasting crew(at that time, Dave Niehaus and Ken Wilson) when attending a game in Seattle.
I think that he continued to do that after he left the station.
In 1980, I worked for KNOI in Pullman and they also carried Mariner Baseball, Roth, at that time, worked for KEXI, a Milton-Freewater Oregon station. Once again, I heard that Roth had brought the Mariner crew a bag of Walla Walla Sweets.
Many years later, I got to meet Dave Niehaus at the Fred Hutchinson Luncheon. I asked Dave if he remembered Bevan Roth. He sure did.