Yes, there are books written about Irena Sendler, a Polish social worker who saved approximately 2,500 Jewish children during the Holocaust. Some examples include "Irena's Children: The Extraordinary Story of the Woman Who Saved 2,500 Children from the Warsaw Ghetto" by Tilar J. Mazzeo and "The Mother of the Holocaust Children: The Irena Sendler Story" by Anna Mieszkowska.
Irena Miliankova goes by Irena.
Irena Szymanska's birth name is Irena Wiernik.
Irena Horecka's birth name is Irena Hones.
Irena Hrehorowicz's birth name is Irena Sawka.
Irena Sendlerowa's birth name is Irena Stanislawa Krzyzanowska.
Irena Miliankova's birth name is Irena Milyankova.
Irena was 98 when she died.
Irena Sibley was born in 1944.
Irena Orlov was born in 1942.
Irena Andriukaitienė was born in 1948.
Irena Belohorská was born in 1948.
Irena Dubiska was born in 1899.