1878
Janusz Korczak, Polish pediatrician and author (died 1942)
Janusz Korczak, Polish pediatrician and author (died 1942)
Janusz Korczak, Polish pediatrician and author (died 1942)
Polish pediatrician, educator and children's author (1879–1942)
Janusz Korczak, Polish pediatrician and author (died 1942)
Janusz Korczak, Polish pediatrician and author (died 1942)