The city government passed a new ordinance to restrict street speaking as a result of tensions between the IWW and county sheriff Donald McRae, who armed a local militia and beat 41 union members who were attempting to enter the city by boat on October 30, 1916. The beatings drew anger from union members and other Everett citizens, prompting 300 IWW members to travel on the steamers "Verona" and "Calista" from Seattle to Everett on November 5, when they were confronted at the docks by McRae and his posse of 200 citizen deputies, who feared violence and arson from the group. After a heated debate folloewd by several minutes of gunfire, five people on the "Verona" were killed and two deputies on the dock had been mortally wounded from friendly fire; an unofficial death toll of twelve IWW members was determined from the recovery of underwater bodies. At least 50 people were injured, including McRae, and 297 were arrested in Everett and Seattle; only one IWW member, Thomas Tracy, was ultimately tried and found not guilty of first-degree murder after a two-month trial. The shingle weavers strike ended on November 10, 1916, with no concessions from the mill owners, and local residents turned against the IWW for escalating the dispute. The labor tensions subsided with the entry of the U.S. into World War I, despite an attempted comeback by the IWW in disrupting logging for the war effort. As a result of the massacre, the state government passed laws to prohibit citizens from advocating for anarchy or violent overthrow, which were not repealed until 1999. The massacre was largely unacknowledged by local residents until the late 20th century, when book accounts were published and a historic marker was installed overlooking the former docks. The local timber industry continued its boom and bust cycle into the 1920s, suffering from price swings but benefiting from the 1923 Japanese earthquake to supply lumber and the opening of the Panama Canal. The Clough-Hartley shingle mill claimed to be the largest in the world, producing 1.5 million wood shingles per day; the city produced approximately 4.5 million shingles and 3.5 million board feet of lumber per day in 1920. The Port of Everett was created on July 13, 1918, to enable public ownership of the waterfront and promote economic development in the city. By the end of the 1920s, the port had opened the county's first airport on Ebey Island and acquired the 14th Street Dock and Jetty Island from the Everett Improvement Company.