Search tip: If someone’sU.S. World War I Draft Registration card lists his occupation as “Twine worker” and his address as the Minnesota State Prison in Stillwater, Minn., the guy’s an inmate at the prison.
Here’s a photograph (Minnesota Historical Society, Photograph Collection 1925) of the twine factory at the Stillwater Prison. More photographs and background information (.PDF file): James Taylor Dunn, “The Minnesota State Prison during the Stillwater Era, 1853-1914,” Minnesota History, December 1960 (Minnesota Historical Society).