Robert M. Young, Filmmaker Who Indulged His Wanderlust, Dies at 99
New York Times
The subjects of his documentaries included Indigenous peoples, civil rights sit-ins and the war in Angola. His narrative films included “Extremities” and “The Ballad of Gregorio Cortez.”
https://www.nytimes.com/2024/03/01/movies/robert-m-young-dead.html