Hi, Yes I know of Dave Waltz. The waltz's have opened a new restaurant in town. Don't know if they are related. Also know Clair Waltz real well. I got into engines way back in the 70's. Was into the bull thing a long time ago also. Hung around with Max Liddic, his son in law now has bulls and horses in the rodeo circuit. I live near Salladasburg.