In the Boston Police Strike, Boston police officers went on strike on September 9, 1919. They sought recognition for their trade union and improvements in wages and working conditions. Police Commissioner Edwin Upton Curtis denied that police officers had any right to form a union, much less one affiliated with a larger organization like the American Federation of Labor (AFL). Attempts at reconciliation between the Commissioner and the police officers, particularly on the part of Boston's Mayor Andrew James Peters, failed.
During the strike, Boston experienced several nights of lawlessness, although property damage was not extensive. Several thousand members of the State Guard, supported by volunteers, restored order. Press reaction both locally and nationally described the strike as Bolshevik-inspired and directed at the destruction of civil society. The strikers were called "deserters" and "agents of Lenin."
Samuel Gompers of the AFL recognized that the strike was damaging the cause of labor in the public mind and advised the strikers to return to work. Commissioner Curtis refused to re-hire the striking policemen. He was supported by Massachusetts Governor Calvin Coolidge, whose rebuke of Gompers earned him a national reputation. The strike proved a setback for labor unions, and the AFL discontinued its attempts to organize police officers for another two decades. Coolidge won the Republican nomination for vice-president of the U.S. in the 1920 presidential election.
In 1895, the Massachusetts legislature transferred control of the Boston police department from Boston's mayor to the governor of Massachusetts, whom it authorized to appoint a five-person board of commissioners to manage the department. In 1906, the legislature abolished that board and gave the governor the authority to name a single commissioner to a term of five years, subject to removal by the governor. The mayor and the city continued to have responsibility for the department's expenses and the physical working conditions of its employees, but the commissioner controlled department operations and the hiring, training, and discipline of the police officers.