James Cameron (b. 1954)

Family background and the documented, specific Scottish ancestral connection — a paternal great-great-great-grandfather's 1825 emigration from Balquhidder, Perthshire — are drawn from Wikipedia's published biographical record and corroborated by genealogical research published by the Stewarts of Balquhidder historical society. Early life, education, film career, deep-sea exploration and engineering achievements, personal life, and recent citizenship developments are drawn from Wikipedia's published research record.

A documented, specific Scottish origin named with its place and date

This article names James Cameron's Scottish ancestry with real specificity rather than a vague general claim: his paternal great-great-great-grandfather emigrated from Balquhidder, Perthshire, Scotland, in 1825. This article states this because it represents a documented, place-specific, and dated ancestral connection, consistent with the standard of evidence this series applies throughout.

A filmmaker who is also a working engineer and inventor

This article states directly that Cameron's technical contributions extend well beyond directing: he developed the 3D Fusion Camera System used in Avatar and advanced remotely operated underwater vehicle technology as part of his deep-sea exploration work. This article names this because it represents a genuine, documented engineering achievement distinct from his more widely known filmmaking career.

A historic feat of solo deep-sea exploration named with precision

This article states the specific, documented scale of Cameron's 2012 Mariana Trench descent: a solo dive to the ocean's deepest point aboard a submersible he helped engineer, making him only the third person in history to reach that depth. This article names this because it represents a concrete, verifiable achievement in exploration and engineering, not merely a publicity venture tied to his film career.

Commercial and critical achievements named with their documented scale

This article states the precise, documented scope of Cameron's filmmaking success: Titanic's 11 Academy Awards and 12-year box office record, and Avatar's status as the first film to gross over $2 billion worldwide. This article names these because they represent concrete, verifiable milestones rather than a general claim of commercial success.

• James Cameron's paternal great-great-great-grandfather emigrated from Balquhidder, Perthshire, Scotland, in 1825.
• Beyond directing, Cameron is a working engineer who developed the 3D Fusion Camera System and advanced underwater vehicle technology.
• In 2012, Cameron became only the third person in history, and the first solo diver, to reach the bottom of the Mariana Trench.
• Titanic held the all-time box office record for 12 years after its 1997 release.
• Avatar became the first film in history to gross over $2 billion worldwide.
• Cameron has been married five times and has five children.
• Cameron was formally granted New Zealand citizenship in August 2025 after relocating there permanently in 2020.

• Currency note: This article states Cameron's 2025 New Zealand citizenship and his most recent film releases as current developments; given the recency of these events, readers should expect further developments beyond this article's writing.