I can’t imagine milk delivery via dogcart was very common but at least one enterprising milkman recruited his pooch to help him make the rounds. This shot is circa 1910 and was taken at the intersection of Ventura Blvd and Lankershim Boulevard in what is now Studio City in the valley but back then was called Lankershim (and before that, Laurelwood.) Notice how the milkman is pouring the milk into a pitcher, and not delivering it in bottles. I’m guessing that milk is cow-fresh.
You put that rig on a dog today, you be Prosecuted
Indeed!