"\"Janusz Korczak, the pen name of Henryk Goldszmit (July 22, 1878 or 1879 – August 1942), was a Polish-Jewish educator, children's author, and pediatrician known as Pan Doktor \"Mr. Docto\") or Stary Doktor \"Old Docto\"). After spending many years working as director of an orphanage in Warsaw, he refused freedom and stayed with his orphans when the institution was sent from the Ghetto to Treblinka extermination camp, during the Grossaktion Warsaw of 1942\" -- Wikipedia\n\"Janusz Korczak was born Henryk Goldsmit in Warsaw on July 22, 1878. During his youth, he played with children who were poor and lived in bad neighborhoods; his passion for helping disadvantaged youth continued into his adulthood. He studied medicine and also had a promising career in literature. When he gave up his career in literature and medicine, he changed his name to Janusz Korczak, a pseudonym derived from a 19th century novel, Janasz Korczak and the pretty Swordsweeperlady\" -- Jewish Virtual Library\n\nNewspaper clippings, articles, Correspondence."@eng . "Korczak, Janusz, 1878-1942"@eng . . . . . . "1 online recourse (1, 27 pages)\n\nEnvelope 11/75 ; microfilm reel 076 ; Frames 1117-1208"@eng . . "Korczak, Janusz, 1878-1942"@eng . .