HUMAN CANNON BALLS
Here are two completely different Cannons, the Sells-floto I'm guessing is 1929, which is when Gil & Lil Wilson were on that show. It is too bad we don't have a photo of it being fired as it is a very interesting prop. I believe Willy Wilno was the Cannon Ball. The other photo is obviously one of the Zacchinis, in fact Hugo identified his father Edmundo kneeling in front. The reason he is kneeling is because in those days he used a dynamite plunger to fire the cannon. The Zacchinis came to the USA in 1929, and from the style of the truck that looks close. The Cannon Ball is most likely one of his brothers.