Irena Sendler who saved approximately 2,500 children from the Warsaw Ghetto died at age 98. [According to Deborah Dwork she was personally responsible for saving about 400 children herself and being the "prime mover" for the saving of the rest.]
It has been said of her that, had Poland had better public relations, Oskar Schindler would have been known as the "Irena Sendler of Germany."
There is a nice obit for her in the New York Times. In it she praises the bravery of Jewish mothers in the ghetto:
"Here I am, a stranger, asking them to place their child in my care. They ask if I can guarantee their safety. I have to answer no. Somethimes they wold give me their child. Other times they would say come back. I would come back a few days later and the family had already been deported."May her memory and their bravery be for a blessing.