Portrait of Walt Whitman, 1887-88, oil on canvas, Pen Thomas Eakins (1844-1916)

The picture has something of this: people, portrait, mustache, elderly, facial hair, beard, man, lid, wear, painter, scientist, poet, eyeglasses, saint, writer.
Perhaps it’s a close up of a painting of a man with a long white beard and wearing a black jacket with a white collar and a white shirt.