Life became difficult for Hausdorff and his family after Kristallnacht in 1938 . The next year he initiated efforts to emigrate to the United States , but was unable to make arrangements to receive a research fellowship . On 26 January 1942 , Felix Hausdorff , along with his wife and his sister-in-law , committed suicide by taking an overdose of veronal , rather than comply with German orders to move to the Endenich camp , and there suffer the likely implications , about which he held no illusions
Kristallnacht
Kristallnacht
Felix Hausdorff