San Pedro, California was a hotbed of IWW activity during the 1910s and early 1920s. IWW efforts to organize workers were often met with violence by individuals and organizations that saw them as a threat.
In June 1924, the Ku Klux Klan attacked the members of the San Pedro IWW at their meeting hall during a benefit for two workers killed in a railroad accident. The KKK beat many of the 300 members; kidnapped, tarred, and feathered others; destroyed the meeting hall, and scalded two children by burning them with a pot of coffee.
The two children--May Sundsted and Andrew Kruglis--were hospitalized for their burns and this collection includes photographs of them with handwritten notes on the back from photographer E. F. Moffett.
“Little children, little babies
Screaming, sobbing, dashed in steam
By the monsters who repaid them
Oath and blow for every scream….
Little children, raw and bleeding, burnt and tortured.”
--The Shame of California and Other Poems "The San Pedro Outrage.”
Industrial Workers of the World Seattle Joint Branches records, Labor Archives of Washington State, University of Washington Libraries Special Collections, Seattle, Washington.
One of the best ways to find sources on the San Pedro raid is to look through the IWW's newspaper. They have articles on any events their members were involved in. They will be heavy with the IWW's bias beliefs but also a treasure for observing the spirit of the IWW and how strongly they believed in their cause. For starters take a look at these:
Industrial Solidarity: UW Libraries Microfilm (A5675) (Or Industrial Worker, a newspaper by the IWW)
Follow this link to find the mircofilm in UW Libraries:
These are some of the captions handwritten on the back of photographs: