Mengele was the chief provider for the gas chambers at Auschwitz -
and did well! When it was reported that one block was infected with lice,
Mengele solved the problem by gassing all the 750 women assigned to it.
Frank Klein was interned at Auschwitz-Birkenau for seven months. He later recalled how he and his family arrived at the Auschwitz railhead:
first time I saw Mengele was the day I arrived at the camp with my
twin brother, Otto, my mother, my aunt and my sister. One of the men
on the train platform asked my mother if Otto and I were twins. When
my mother said, "Yes," he said, "I'll be right
back." A few minutes later, he took us to Mengele. For the next
hour we watched the selection process. My mother was sent to the gas
chamber, and so was my aunt.