Daniel Anker, known for his narrative documentaries including “Icebound” and “Imaginary Witness: Hollywood and the Holocaust,” died April 21 in Manhattan after a bout with pneumonia caused by treatment for lymphoma. He was 50.

Over the course of his career, the multihyphenate touched on topics ranging from the Holocaust to the dogsledders of 2012’s “Icebound” and the Scottsboro trial in his 2000 film “Scottsboro: An American Tragedy,” which was shown on public TV and earned Anker an Oscar nom.

Anker’s resume also includes musical-infused projects such as “Music From the Inside Out,” which featured players from the Philadelphia Orchestra, and the children’s TV series “Marsalis on Music” with trumpeter Wynton Marsalis.

Born in Washington, Anker grew up in Potomac, Md., and studied musicology and psychology at Harvard.

Anker’s most recent documentary, “Sidney Lumet: The Moral Lens,” based on the life of the titular helmer, was in post-production at the time of his death.

He is survived by his wife, Donna Santman.