Caspar David Friedrich (5 September 1774 – 7 May 1840) was a 19th-century German Romantic landscape painter, generally considered the most important German artist of his generation. He is best known for his mid-period allegorical landscapes which typically feature contemplative figures silhouetted against night skies, morning mists, barren trees or Gothic ruins. His primary interest as an artist was the contemplation of nature, and his often symbolic and anti-classical work seeks to convey a subjective, emotional response to the natural world. Friedrich's paintings characteristically set a human presence in diminished perspective amid expansive landscapes.
Fred Holland Day (Boston July 8, 1864 - November 12, 1933) was an American photographer and publisher. He was the first in the U.S.A. to advocate that photography should be considered a fine art.Day was the son of a Boston merchant, and was a man of independent means. for all his life.
Day's life and works had long been controversial, since his photographic subjects were often nude male youths.