Show Arrest Ends Labor Riot Chicago The arrest of fortytwo persons Filday night ended a riot which begun with nn attack on two mmupton teamsters at Halstead and Van Uiiren streets More than 500 men nnd women were Involved James Simpson nnd Oscar Horger nonunion teamsters who had resigned their po Kltlons sit weri reeognled by union men They were attacked and as the crowd Increased the police were notified Lieutenant OConnor and n 1 patrol wa gon loaded with Dollrrnien arc ter all 111 i ref ed to o away |