Michele Corriel and Paul Baker Prindle, Odd Horizon: Stephen Chandler & Robert Royhl. Churchill Arts Council, 2014. (download pdf)

Montana Painters and the Legacy of the Poindexter Collection, Holter Art Museum, Helena, Montana [download pdf of accompanying Royhl essay on Abstract Expressionism]

Gordon McConnell, Making Connections, Modern and Contemporary Art on the High Plains, 1945–Present, Works from the Permanent Collection of the Yellowstone Art Museum. Introduction by Elizabeth Guheen. Yellowstone Art Museum, 2005, pages 66–67. (view page)

Gordon McConnell, Yellowstone Art Museum: The Montana Collection. Foreword by Donna M. Forbes. Introduction by Mark Stevens. Yellowstone Art Museum, 1998, page 60. (view page)