Was Dorothea Lange in the pop art movement?

No, Dorothea Lange was not part of the pop art movement. She was a documentary photographer known for her poignant images taken during the Great Depression, particularly her famous photograph "Migrant Mother." Lange's work focused on social issues and human experiences, contrasting with the commercial and consumer-oriented themes of pop art, which emerged in the 1950s and 1960s.