Mark Morrisroe | Untitled (Pat Hearn) Untitled (Pat Hearn) c. 1980s Gelatin silver print 5.5 x 3.75 inches Sold. Literature: Ramsey McPhillips, Mark Dirt (Paper Chase Press: Los Angeles, California, 2012), p. 33, full-page illus. Work by Mark Morrisroe (1959-1989)