Thomas H. Tracy Donald McRae The Everett massacre, also known as Bloody Sunday, was an armed confrontation between local authorities and members of the Industrial Workers of the World (IWW) union, commonly called "Wobblies".

Verona arrived at Everett before Callista and as they approached the dock in the early afternoon, the Wobblies sang their fight song "Hold the Fort".

Local business interests, knowing the Wobblies were coming, placed armed goon squads on the dock and on at least one tugboat in the harbor, Edison, owned by the American Tug Boat Company.

[3] As with previous labor demonstrations, the local businessmen had also secured the aid of law enforcement, including the Snohomish County sheriff Donald McRae, who was known for targeting Wobblies for arbitrary arrests and beatings.

[4] More than 200 vigilantes or "citizen deputies", under the ostensible authority of Snohomish County Sheriff McRae, met in order to repel the "anarchists".

There was a good likelihood that at least some of the casualties on the dock were caused not by IWW firing from the steamer, but on vigilante rounds from the cross-fire of bullets coming from the Edison.

Other historians have placed blame on external forces, including that a private detective working as a labor spy had advocated violent action at an IWW meeting in Everett.

[14] Upon returning to Seattle, 74 Wobblies were arrested as a direct result of the "Everett Massacre" including IWW leader Thomas H. Tracy.