Artists conserved by Morgan Hayes:
Adam Edwin Proctor | Aimee Gorham | Alban Jasper Conant | Albert Pinkham Ryder | Alfred Hermann Schroff | Alyssa Adams | Armand Guillaumin | Arturo Pacheco Altamirano | Barry Faulkner | Brad Durham | Byron Gardner | Carl Morris | Charles Arnoldi | Charles Fries | Charles Jacque | Chauncey Ryder | Clyde Leon Keller | Colista Murray Dowling | C.S. Price | Damien Hirst | Dana Schutz | David Delamare | Davis Francis Schwartz | Dudley | Earl Thollander | Edgar Payne | Edouard Febvre | Edward Dugmore | Eliza Barchus | Emiel Jacques | Eric Auld | Ferdinand Bol | Francesco Albano | Francis Newton Souza | Frank Harold Hayward | Frank Stella | Franz Kline | Gail N. Moulton | Gary Westford | Georg Baselitz | George Caleb Bingham | George Paul Canitz | Giovanni Paolo Panini | Grace Hudson | Grant Wood | Granville Redmond | Guercino | Hans Richter | Harold Booth | Hebru Brantley | Helen Lundeberg | Henk Pander | Henri Matisse | Henry John Boddington | Hernando G. Villa | H.R. Dietz | Iba N’Diaye | Ida Applebroog | Jacques-Émile Blanche | James Lavadour | Jay Backstrand | Jim Radakovich | John Frost | John McLaughlin | John Phillips | John Singer Sargent | Julián Casado | Julien Dupré | Keith Haring | Lau Chun | Lee Ufan | Leon Kroll | Leon Réni-Mel | Louis Bunce | Luca Giordano | Lucinda Parker | Luigi Rocca | Manuel Izquierdo | Marcello Muccini | Mark Flores | Marlon Mullen | Mary Corse | Mary Townsend Mason | Meno Mühlig | Michele Garinei | Michele Russo | Michael Dailey | Michael Loew | Micheil Claesz | Monica S. Camin | Morris Hall Pancoast | Morris Louis | Otto Dix | Otto Fried | Paul Lauritz | Paul Morgan Gustin | Pierre-Auguste Renoir | Ralph Albert Blakelock | Raymond Wallis | René Magritte | Richard Dey De Ribcowsky | Richard F. Lack | Richard Serra | Robert Colescott | Robert Sewell | Rosa Bonheur | Rufino Tamayo | Russel Chatham | Ruth Pastine | Sally Haley | Satsuko Hamilton | Susan Sales | Swoon | Sydney Laurence | T. Allen Lawson | Théodore Caruelle D'Aligny | Thomas Moran | Vaclav Vytlacil | Walter Mischel | W.B Allen | Wei | Wes Cook | William Cahill | William Goodell | William Keith |
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.