| Code | DS/UK/14 |
| Dates | 05/11/1865- |
| Person Name | Ollendorff; Oscar (05/11/1865-) |
| Surname | Ollendorff |
| Forenames | Oscar |
| Activity | Art historian |
| Relationships | Brother of Paul, Ernst and Agnes Ollendorff; married Margarete Ollendorff (12/1913), née Gauer. |
| History | Since 1883 Ollendorff suffered frequently from mental illness, from 1886-88 he was treated by Dr. Ewald Hecker in Johannisberg, studied History of Art from 1889-94 in Berlin under Professors Frey and Herman Friedrich Grimm. 1894-1909 further treatment by Dr. Hecker in Wiesbaden where Ollendorff continued his studies independently. |
| Source | CV, typescript by his brother Paul Ollendorff, in WIA, General Correspondence, Ollendorff, Paul to Warburg, Aby 13/06/1928. |
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