Hartog Joseph Frankfort

Hartog died at Monowitz.

Of the three Nazi concentration camps located near the town of Auschwitz, the Auschwitz III camp, also known as Monowitz, was the most important to the Nazis because of its factories which were essential to the German war effort. The Monowitz industrial complex was built by Auschwitz inmates, beginning in April 1941. Initially, the workers walked from the Auschwitz main camp to the building site, a distance of 4 - 6 kilometers each way.

The Jews who were sent to Auschwitz, and then assigned to work at Monowitz, had a much better chance of survival because the factory workers were considered too valuable to send to the gas chambers, at least while they were still able to work. Two famous survivors who worked at Monowitz were Elie Wiesel and Primo Levi, both of whom wrote extensively about the Holocaust.

http://www.scrapbookpages.com/poland/Auschwitz/MonowitzHistory.html