[1] Before moving to Tamworth, New South Wales four years after Sen was born, in his mother's efforts to escape domestic violence, the family would regularly visit her birthplace, Toomelah.

Founded in 1937 by the New South Wales government, Toomelah turned from reserve into mission, but is also called a station, and has a history of precarious conditions and harming policies.

The family still visited Toomelah occasionally, and Sen enjoyed popularity and friendship with all kinds of children, both black and white, rich and poor.

[9] In 2009, the Message Sticks Indigenous Film Festival held at the Sydney Opera House saw the world premiere of Sen's Fire Talker, a documentary biopic about political activist, Aboriginal footballer, and statesman Charlie Perkins.

[14] In 2018, Sen acted as executive producer on the ABC TV production of Mystery Road, a six-part series based on characters featured in the movie of the same name and sequel.

[2] His distinctive portrayal of skies, roads and low horizons are Sen's way of addressing issues of location, dislocation and relocation in their relation to identity.

[15] The documentary Yellow Fella focuses on the Aboriginal actor and musician Tom E. Lewis, who starred in The Chant of Jimmie Blacksmith (Fred Schepisi, 1978).

[16] Sen documents Lewis as he hits the road to search for his Welsh father's place of burial and, at the same time, a missing part of his own identity.

Much of the script was based on notes Sen took of the inhabitants' own words, expressions, ideas and emotions, trying to translate the immobility from which Toomelah suffers—a place that has both lost touch with its roots and been forgotten by its founding state.