Preparedness Day Bomb

The evidence against a condemned man fell apart, and he stayed in prison for twenty more years.

Collection: San Francisco: More Stories · USA · Open in OpenStreetMap

Clock from the Preparedness Day bomb · Unknown author, Public domain, Wikimedia Commons

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How the story begins

Ten people died on this block, and whoever put the bomb here has never been identified. It went off at 2:06 on the afternoon of the twenty-second of July 1916 during a parade in favor of military preparedness. Some forty people were hurt. The men convicted were Tom Mooney and Warren Billings, union activists who had taken part in strikes against the Pacific Gas and Electric Company and the streetcar company.

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