 Upon the completion of his documentation of the civil rights movement, Davidson received the first ever photography grant from the National Endowment for the Arts of $12,000.In 1964 Davidson became an instructor at the School of Visual Arts, New York (thereafter giving private workshops in his own studio/darkroom), and continued to produce features for "Vogue"; Philip Johnson in his glass house, Andy Warhol in his loft, Cristina Ford in her backyard, and offered a photography workshop from his Greenwich Village studio.He produced a story on a “topless” restaurant in San Francisco for "Esquire" (1965), then later in the year traveled to Wales for a "Holiday" magazine assignment to photograph castles and also covered the coal mining industry in South Wales.