The first two photos appear to have been taken at Walden.
The next two photos show an early T-Model Ford. Identities of the individuals unknown. In the first one notice the same two gentlemen (as in an earlier photo) deliberately looking away from the camera.
I’m pretty sure this is another early T-Model Ford. Once again, identities of the individuals unknown.
Car and lady both apparently decorated for a float parade. Occasion and identity of the individual unknown.