Artists conserved by Morgan Hayes:
René Magritte John McLaughlin Morris Louis Paul Gauguin Agnes Pelton Helen Lundeberg Rufino Tamayo
Marsden Hartley John Singer Sargent Diego Rivera Hans Richter Albert Pinkham Ryder Analia Saban
Otto Dix Ralph Albert Blakelock Grant Wood Edward Dugmore Micheil Claesz Théodore Caruelle D'Aligny
Luca Giordano Julien Dupré Aimee Gorham Mark Flores Colista Murray Dowling C.S. Price Michael Dailey
Granville Redmond Ferdinand Bol Edgar Payne Jasper Francis Cropsey Manuel Caro William Cahill
Louis Bunce Michele Garinei Charles Fries Leon Réni-Mel Maurice Braun Barry Faulkner
Giovanni Paolo Panini William Goodell Leon Kroll Morris Hall Pancoast Sydney Laurence
as well as anonymous artists from various schools and genres, including 16th-century Flemish, 17th-, 18th-, and 19th-century Spanish Colonial, and 19th-century American Folk.
Artworks treated by Morgan Hayes are held in these collections:
Portland Art Museum, Portland, OR
Hallie Ford Museum of Art at Willamette University, Salem, OR
Ronna and Eric Hoffman Gallery of Contemporary Art at Lewis & Clark College, Portland, OR
University of Oregon, Eugene, OR
Concordia University, Portland, OR
Anchorage Museum, Anchorage, AK
Los Angeles County Museum of Art, Los Angeles, CA
Natural History Museum of Los Angeles, Los Angeles, CA
Santa Barbara Museum of Art, Santa Barbara, CA
Laguna Art Museum, Laguna Beach, CA
San Diego Museum of Art, San Diego, CA
Museum of Contemporary Art San Diego, La Jolla, CA
Timken Museum of Art, San Diego, CA
The San Diego History Center, San Diego, CA
San Diego Air & Space Museum, San Diego, CA
The City of San Diego, CA
Mission San Luis Rey, Oceanside, CA
Mission San Juan Capistrano, San Juan Capistrano, CA
as well as privately held collections.