World War II-Era Provenance research project
- Spring Beauty
- Madrazo y Garreta, Raimundo de, Spanish
- A Girl Sewing
- Maes, Nicolaes, Dutch
- Landscape with Gypsies and Washerwomen
- Magnasco, Alessandro, Italian
- Portrait of a Girl
- Maigret, Georges Edmond, French
- Madonna and Child with St. Nicolas of Babi and St. Justina
- Mainardi, Sebastiano, Italian
- The Holy Family with St. John and an Angel
- Mainardi, Sebastiano, Italian
- Rue de L'Epicerie, Rouen
- Manzana-Pissarro, George, French
- Rebecca and Eliezer at the Well
- Maratti, Carlo, Italian
- Landscape
- Marston, Reginald S., English
- The Pergola (La Pergola)
- Martin, Henri Jean Guillaume, French
- Madonna and Child
- Master of Badia a Isola, Italian
- Triptych of the Annunciation
- Master of the Legend of St. Ursula, Flemish
- Woman Seated in an Armchair
- Matisse, Henri, French
- Bridge at Charenton
- Mauny, Jacques, French
- Virgin of Sorrows
- Meneses Osorio, Francisco, Spanish
