They were armed with revolvers, nightsticks, blackjacks, and hatchet handles. These are known colloquially as blackjacks, saps, or coshes. Several victims were seriously injured with blackjacks and brass knuckles. In 2019, the AFL added the Atlantic City Blackjacks with home games at Boardwalk Hall. On April 2, 2019, Williams was assigned to the Atlantic City Blackjacks. The Ottawa Blackjacks are a new professional basketball team established in 2019. In the 1970s, Lanza and Mulligan teamed up to form The Blackjacks. He went on to later manage The Blackjacks (Lanza and Mulligan). But you didn't use blackjacks or guns on them. It added an expansion team the Ottawa Blackjacks. Younger trees have blackish-brown bark, referred to as "blackjacks" by early loggers. The group, initially called the Blackjacks, quickly changed their name to the Quarrymen. Another use was for large bottles or jugs called "blackjacks", "bombards" or "costerns". Blackjacks may, however, cause tannic acid poisoning in cattle. Erna was the first drummer for the Amerindie band the Blackjacks.