 | This article includes a list of general references, but it lacks sufficient corresponding inline citations. (September 2024) |
Johannes Herman Frederik Umbgrove | |
|---|---|
 Johannes Herman Frederik Umbgrove | |
| Born | 5 February 1899 |
| Died | 14 June 1954 (aged 55) Wassenaar, South Holland, Netherlands |
| Nationality | Dutch |
| Scientific career | |
| Fields | Geology, geoscience |
Johannes Herman Frederik Umbgrove HFRSE (5 February 1899 Hulsberg (Limburg) – 14 June 1954 Wassenaar), called in short Jan Umbgrove, was a Dutch geologist and earth scientist.