Guglielmo Deiuri was born in Ronchi dei Legionari on 22 May 1901 and lived at Via Brigata Modena 2.
He was arrested following a denunciation during the roundup of 24 May 1944 and taken to the Coroneo prison in Trieste. After interrogation, he was put on transport no. 48, which departed on 31 May 1944 and arrived in Dachau on 2 June 1944, where he was registered under prisoner number 69626. On 20 July 1944 he was transferred to Markirch (a subcamp of Natzweiler) and registered under number 23443; he returned to Dachau on 23 September 1944 and was killed on 16 March 1945 in the Allach subcamp.