In the block books are entries of transfers to other concentration camps, releases, dates of death and employment in various external and internal camp detachments and transfer to other blocks or to the infirmary. The names are repeated and partly badly readable.
Immediate source of acquisition or transfer
Glowna Komisja Badania Zbrodni Hitlerowskich w Polsce, Warszawa (Hauptkommission zur Erforschung der Hitlerschen Verbrechen in Polen, Warschau)