letter, From: Holas, Stanislaus To: Vlasta Knob in Prague - Gusen 5 March 1944

Subcamp Passau II (subcamp of Dachau transferred to the Mauthausen group) worked for Oberilzmuehle Elektrizitätswerk (see Le Chêne. Mauthausen ou la comptabilité de l’horreur. p. 232. She states that on 15 May 1945 the subcamp contained 80 inmates. It is in fact difficult to differentiate between PASSAU I and PASSAU II. Passau I contained 300 prisoners between March 1944 and March 1945.