The Lure of Airshows

The largest event of these three mystery shots is this one...I've seen some photos
of the National Air Races that appear similar to this venue.

During the Golden Age of aviation, airshows were the thing...much more of a hoopla-filled civic event than the are today, which is truly a shame, in my book. The three photos featured today are mysteries...there is no information accompanying them to indicate when or where. If you recognize any of these venues, please comment!

Curious crowds gather behind these planes. The line-abreast formation is remniscent of a race

This gathering has less of a formal feel to it, and seems more like a gathering of barnstormers.