John Oliver Hand
John Oliver Hand was the curator of Northern Renaissance Paintings at the National Gallery of Art, Washington, until his retirement in 2019. His publications include systematic catalogues of the Netherlandish (1986), German (1993), and early French paintings (2009) in the National Gallery of Art. He also co-organized international exhibitions on Michel Sittow (2018), metalpoint drawings (2015) and Netherlandish diptychs (2006). His doctoral dissertation for Princeton University on Joos van Cleve was published as a monograph and catalogue raisonné in 2004.