Biography
Wilhelm Schumann was pastor of the First Evangelical Church in Pomeroy, Iowa, affiliated with the Evangelical Synod. In June 1918 he was convicted under the Espionage Act and sentenced to five years plus a $250 fine and costs. After returning home on appeal, he began serving at Leavenworth in November 1919 and received a Harding pardon in December 1921. The 1917 arrest, subsequent bond release and later sentence service were separate episodes; the source does not support uninterrupted imprisonment beginning July 1918. Prosecutors F. A. O’Connor and Seth Thomas relied on undercover informer Werner Hanni; C. H. Van Law represented Schumann. William H. Thomas Jr., Unsafe for Democracy (University of Wisconsin Press, 2008), physical PDF pages 22–29 (printed 9–16), 198–199 (notes, printed 185–186); SHA256 d3412c7b355a8b2d692ec1eca9d219667821f16ca93f32348ad3fd0392ac3b34; source https://library.uc.edu.kh/userfiles/pdf/1.Unsafe%20for%20democracy%20%20World%20War%20I%20and%20the%20U.S.%20Justice%20Department%27s%20covert%20campaign%20to%20suppress%20dissent.pdf.
1920s remaining-entry review: William H. Thomas Jr., Unsafe for Democracy, printed pages 11 and 16 (PDF pages 24 and 29), describes the investigator arriving December 1, 1917, taking Schumann to Sioux City, and his subsequent release on bond. It expressly dates the start of his Leavenworth sentence to November 1919 after appeals. Both complete pages were visually checked. The former July 11, 1918 incarceration date did not represent uninterrupted confinement. Admission is recorded at month precision; no exact day or total is invented.