Now those are awesome photos! Perhaps an exhibition game featuring the Athletics vs the Los Angeles PCL club? Dan Tobey was most famous as a boxing ring announcer in the 1920s-50s, but before that he was a member of the Nebraska Indians baseball team. He also has one official at bat in a PCL game in the 1930s...it had to be some kind of a stunt though as Tobey would have been near 50 at the time and was already famous from movies and ring announcing...he was the Michael Buffer of his day.
The site of these photos are probably from LaPalma Park in Anaheim - the A's held spring training there from 1939-41.