The second image is a postcard. Esther's caption is Mr. Austin of Upjohn at the Left. I like the posed postcards and this one I always thought was posed with employees.
The next two images are of the employee's cafeteria which was located at the back of the Red Wagon Inn. The caption is steps to employee cafeteria.
And this is a close up of the water sprinkler sign. I would love to have this as it is specifically marked for the Red wagon Inn.
The next two are captioned Alice Employee Cafeteria. I assume she was like the school lunch lady and was the cashier for the cafeteria.