Question: What was William T. Anderson the leader of in the Centralia Massacre?
Sentence (from "Warren Grimm"): Warren O. "Wedge" Grimm (March 9, 1888 – November 11, 1919) was an All-American at the University of Washington and an officer in the United States Army, he served with distinction as part of the American Expeditionary Force Siberia stationed in Russia in 1918–19.
Relevant evidence: No