Robinson Crusoes of Warsaw - Wikipedia, the free encyclopedia: "The largest known group of Robinsons was composed of 37 people[note 7] under the leadership of Roman Fiszer and medical doctors, Dr. Beer and Prof. Henryk Beck. Beck was the director of a makeshift insurgent hospital during the uprising. As it became clear that the insurrection was going to fail, he and Cpt. Władysław Kowalski, a Home Army soldier who also decided to stay, converted two adjacent basements into a well-equipped and supplied hiding place"
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