Albert Bierstadt’s story runs counter to the romanticized idea of a passionate starving artist. He was strategic in his career, selecting imagery that he knew would appeal to U.S. audiences, and monetizing his art outside of selling paintings.
Research:

SYMHC Classics: COINTELPRO 1
39:12

Behind the Scenes Minis: It's Not Unprecedented
16:46

The Rendition of Anthony Burns, Part 2
43:32