Janice T. Driesbach is Curator of Art at the Crocker Art Museum in Sacramento. Her most recent book is Direct from Nature: The Oil Sketches of Thomas Hill (1997). Harvey L. Jones is Senior Curator of Art at the Oakland Museum of California. His most recent book is Twilight in Reverie: California Tonalist Paintings, 1890-1930 (1995). Katherine Church Holland, formerly Fine Arts Curator at the California Historical Society, is currently an independent curatorial consultant.