Biography
Harry DeBoer was a Minneapolis coal-yard Teamster; leader of the 1934 Minneapolis Teamsters Strike, credited with developing the "cruising picket" tactic. Wounded by police gunfire on Bloody Friday during the 1934 strike. SWP labor activist for decades; authored the 1987 essay "How to Win Strikes: Lessons from the 1934 Minneapolis Truckers Strike."
The author note accompanying his Ray Rainbolt obituary states that DeBoer actually served ten months in prison as one of the eighteen antiwar labor activists and socialists convicted in the first Smith Act trial in 1941. This is a reported actual duration, distinct from his nominal sentence of twelve months and a day. It conflicts with the legacy case endpoints spanning December 1941 to January 1945; those endpoints are retained pending chronological reconciliation and are not treated as proof of uninterrupted confinement. No exact admission or discharge day is inferred from ten months. Source: The Militant, May 19, 1978, PDF page 19, https://www.themilitant.com/1978/4219/MIL4219.pdf#page=19