I te 11 o Hānuere 1916, tekau mā ono ngā kaimahi o Asarco i patua, i whatiwhatiia e ngā tangata a Pancho Villa e tata ana ki te taone o Santa Isabel, Chihuahua. Ko tētahi o ngā tūtukitanga i whakaoho i te Rōpū Mexico
, he ngana a te ope taua o te Hononga o Amerika ki te hopu, ki te patu rānei i a Villa.