Statements (12)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:person
|
| gptkbp:birthYear |
1807
|
| gptkbp:deathYear |
1881
|
| gptkbp:nationality |
gptkb:American
|
| gptkbp:notableFor |
development of Downer’s mineral sperm oil
pioneer in the petroleum industry |
| gptkbp:occupation |
gptkb:businessman
gptkb:inventor |
| gptkbp:parent |
gptkb:Samuel_Downer_Jr.
|
| gptkbp:bfsParent |
gptkb:Massachusetts_Horticultural_Society
|
| gptkbp:bfsLayer |
5
|
| https://www.w3.org/2000/01/rdf-schema#label |
Samuel Downer
|