Emanuel Ringelblum Jewish Historical Institute; http://www.jhi.pl/en.

Geni; https://www.geni.com/family-tree/html/start.

Historic Films Stock Footage Archive, YouTube channel; https://www.youtube.com/channel/UCPbqb1jQ7cgkUqX2m33d6uw.

The Hebrew University of Jerusalem: Holocaust Oral History Collection; http://multimedia.huji.ac.il/oralhistory/eng/indexen.html.

Holocaust Historical Society; https://www.holocausthistoricalsociety.org.uk.

JewishGen; https://www.jewishgen.org/new.

Jewish Partisan Education Foundation; http://www.jewishpartisans.org.

Jewish Records Indexing – Poland; http://jri-poland.org.

Jewish Virtual Library; https://www.jewishvirtuallibrary.org.

Jewish Women’s Archive: The Encyclopedia of Jewish Women; https://jwa.org/encyclopedia.

Michael Kovner; https://www.michaelkovner.com.

Modern Hebrew Literature – a Bio-Bibliographical Lexicon; https://library.osu.edu/projects/hebrew-lexicon/index.htm.

Museum of the History of Polish Jews POLIN: Virtual Shtetl; https://sztetl.org.pl/en.

Museum of the History of Polish Jews POLIN: Polish Righteous; https://sprawiedliwi.org.pl/en.

Narodowe Archiwum Cyfrow (National Digital Archive); https://audiovis.nac.gov.pl.

The New York Public Library: Yizkor Book Collection; https://digitalcollections.nypl.org/collections/yizkor-book-collection#/? tab=navigation.

Organization of Partisans, Underground Fighters and Ghetto Rebels in Israel; http://eng.thepartisan.org/ and http://archive.c3.ort.org.il/Apps/WW/page.aspx?ws=496fe4b2-4d9a-4c28-a845-510b28b1e44b&page=8bb2c216-624a-41d6-b396-7c7c161e78ce.

Polish Center for Holocaust Research: Warsaw Ghetto Database; http://warszawa.getto.pl.

Sarah and Chaim Neuberger Holocaust Education Center: In Their Own Words; http://www.intheirownwords.net.

Sharon Geva; http://sharon-geva.blogspot.com/p/english.html.