Rudolf Braz, June 26, 1913 - August 3, 2011, last known pink triangle concentration camp survivor.

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1. Arolensen Archives

From their wiki

https://en.wikipedia.org/wiki/Arolsen_Archives

snip-"The Arolsen Archives – International Center on Nazi Persecution formerly the International Tracing Service (ITS), in German Internationaler Suchdienst, in French Service International de Recherches in Bad Arolsen, Germany, is an internationally governed centre for documentation, information and research on Nazi persecution, forced labour and the Holocaust in Nazi Germany and its occupied regions. The archive contains about 30 million documents from concentration camps, details of forced labour, and files on displaced persons.[1][2][3] ITS preserves the original documents and clarifies the fate of those persecuted by the Nazis. The archives have been accessible to researchers since 2007. In May 2019 the Center uploaded around 13 million documents and made it available online to the public.[1] The archives are currently being digitised and transcribed through the crowdsourcing platform Zooniverse. As of September 2022, approximately 46% of the archives have been transcribed.[4]"
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