I know I commented on the photo already, but I looked at it again, and besides the Corvair and the Chevrolet truck (kind of a green color) being early 60s models is the fact that this photograph is in COLOR. I remember my mother had a camera she called a "box camera" that took excellent photographs, but her photographs were in black and white up until the last roll of film she got for that camera when my sister was a baby (born in 1967). Most of the photos I've seen that family and friends had made up until the later 60's were black and white, nobody took color photos in the early 60s, so I'm thinking the photo would have to be at least the mid 60s.

Also, ladies might be better to ask about the ladies' dresses, but they are not real short, but they are about their knees or above which makes me think the picture was probably mid to later 1960s. --Richard