Wikidata entity: Q3138766

P569 (date of birth): 1885-07-06 | P570 (date of death): 1958-07-04
| P373 | Commons category | String | Hjalmar Fredrik Gjertsen | ??? |
| P27 | country of citizenship | ... | Q20 (Norway) | Norway |
| P734 | family name | ... | Q30101859 (Gjertsen) | Gjertsen |
| P735 | given name | ... | Q4926491 (Fredrik) | Fredrik |
| P735 | given name | ... | Q18428430 (???) | ??? |
| P31 | instance of | ... | Q5 (human) | human |
| P106 | occupation | ... | Q2095549 (aircraft pilot) | aircraft pilot |
| P106 | occupation | ... | Q11900058 (explorer) | explorer |
| P1344 | participant in | ... | Q8414 (Amundsen's South Pole expedition) | Amundsen's South Pole expedition |
| P607 | participated in conflict | ... | Q361 (World War I) | World War I |
| P19 | place of birth | ... | Q2290 (Porsgrunn) | Porsgrunn |
| P119 | place of burial | ... | Q1413698 (Vestre gravlund) | Vestre gravlund |
| P21 | sex or gender | ... | Q6581097 (male) | male |
| P2600 | Geni.com profile ID | 6000000040403925029 |
| P2671 | Google Knowledge Graph ID | /g/119pfjpjx |
| P345 | IMDb ID | nm10239100 |
| P213 | ISNI | 0000000361657615 |
| P4574 | Norwegian historical register of persons ID | pd00000034629977 |
| P214 | VIAF cluster ID | 221311753 |
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