found: Annapolis adventure, 1970.
found: Everybody works but John Paul Jones, 1981:t.p. (Marion E. Warren) CIP data sheet (b. June 18, 1920)
found: Cross currents in quiet water, c1987:t.p. (Marion Warren)
found: Washington post WWW site, Sept. 13, 2006(Marion E. Warren; b. Marion Edwin Warren, June 18, 1920, Wheat Basin, Mont.; d. Sept. 8, Anne Arundel Medical Center, aged 86; his poetic photographs captured the varied landscapes and people of Maryland)
found: Maryland ArtSource-Artists-Marion Warren, viewed Nov. 3, 2009(Marion Warren (1920-2006; documentary and commercial photographer as well as ecology advocate, lived and worked in Maryland for most of his career after his arrival in 1947; Marion and Mary Warren had three children, Paul, Nancy and Mame)