Biography
Myron Sprague was a laborer and a delegate of Local 573 of the Industrial Workers of the World's Construction Workers Industrial Union, at Stockton, California. Arrested during the federal suppression of the Sacramento IWW organization, he was convicted in the Sacramento mass trial and sentenced in January 1919 to ten years in federal prison. He was held from at least April 1918 and served at Leavenworth Penitentiary as inmate 13581 until his release on December 22, 1923. The Industrial Worker of May 1923 gives his birthday as May 22; no birth year is recorded.
The National Archives confirms the inmate number, and the Department of Justice collection at Cornell holds a separate thirteen-page clemency and prison-conduct file for him.
Case
United States Penitentiary, Leavenworth