High School Motorcycle Parking Lot, 1947

I ran across this picture a while back, and found it rather fascinating. It’s one thing to see old bikes and scooters displayed in a museum, but quite another to see them doing what they did back in their day. This is a high-school parking lot in 1947; there’s a “Tex” on the license plate. Apparently, scooters (Cushmans) and light bikes were quite popular. The question is, what brands are those small-displacement bikes? (Harley’s 125 cc Hummer didn’t came out until 1948.) Can anyone ID any of these bikes (click on picture for full size)?