8. Wikipedia — “Vilhjalmur Stefansson” (en.wikipedia.org). Source for: Canada and Britain both declining to support territorial claim, international incident of raising Union Jack on Russian territory, Stefansson drawing public anger from families, Roald Amundsen “greatest humbug alive” quote (noted as citation-needed), expedition members inadequately experienced and ill-equipped.
9. NPS (National Park Service) — “Ada Blackjack: Stranded on Wrangel Island” (nps.gov/articles, updated September 19, 2025). Cross-reference source for expedition group, January 1923 three men’s departure, Knight death June 23 1923, rescue August 20 1923 (NPS gives August 20; Wikipedia and History.com give August 19 — article uses August 19 per majority of sources), cat Vic.
**Key notes on guardrails:**
– Ada identified throughout as Iñupiaq, not generic “Inuit.”
– Survival skills attributed to learning on-island, combined with existing cultural knowledge, not automatic ethnicity-provided competence.
– Five humans originally; three left January 28 1923; Knight died June 23 1923; Ada sole human approximately two months before rescue, not two years alone.
– Vic’s survival noted; “human” qualifier in headline preserved.
– Wrangel Island correctly located north of Siberia.
– Colonial claim history noted without asserting successful annexation — Britain and Canada both declined; Russia maintains sovereignty today.
– Knight’s illness from scurvy (attributed sources); no medical diagnosis added beyond documented record.
– Noice accusations presented as attributed allegations, paired with Knight family’s refutation and weight evidence contradicting “well and fat” claim.
– No invented dialogue, private thoughts, or unattributed scenes.
– Ada’s age at expedition start noted as “approximately 23” given birth year uncertainty (1898 or possibly 1899).
– Compensation: expedition wages plus small fur payment only, per documented record.
– Later life after expedition: remarried, second son Billy, returned to Arctic, died 1983 — no invented happy or unhappy financial ending.