Abstract
A contribution to the biography of the medical doctor of Jewish origin, Ida Irma Marcus (1863-1958), will show possibilities offered by archival sources in the CR or in the international electronic databases, when searching out data about the life and work of a woman having a university degree in the first half of the 20th century. Ida Irma was born to the family of professor Moritz Winternitz (1863-1937) of Prague German University, a top Indologist of European significance during his work at Oxford University.
Thanks to that, she had gained dual nationality that played a key role for the family at the beginning of the World War II, when it was necessary to decide about being (emigration) or not being (internment in the annihilation or concentration camps). She married Walter Marcus, a medical doctor of Jewish origin too.
After their working together in German Solingen and the husband's short internment at Dachau, they succeeded to move to the USA at the beginning of the 40s, where the family stayed for good, even after the war operations ended. The contribution will be written as a case study, pointing out difficulties of source research for biographical purposes.