We can never learn enough about Gordon Parks. R.C> Baker at The Village Voice wrote up a brief on an exhibit of his work and included this, in talking about one of Parks’ iconic images:
“That’s the photograph I made of her, in the government building, in front of the American flag, with a broom in her hand and a mop in the other, and as my contribution to the style of Grant Wood, of course — the American Gothic, I called it. And when Roy Stryker saw that picture he nearly died. He said, ‘Oh my God, we’re all gonna be fired.’”
Worth a read to start your understanding of Parks.