Ridge did not join any political party , but was active in radical causes . She protested against the executions of Sacco and Vanzetti in 1927 , and was among those arrested that day . In the 1930s , she supported the defence of Tom Mooney and Warren Billings , who had been framed for a 1916 bombing at the Preparedness Day Parade in San Francisco
Preparedness Day Parade
Preparedness Day Bombing
Lola Ridge