McEvoy is probably best known as a portrait painter, mainly of women. Born in 1878, he was encouraged by Whistler to enter the Slade School of Fine Art where he met Augustus John and William Orpen. He later worked with Walter Sickert. He painted a number of distinguished sailors and soldiers, examples of which are now in the Imperial War Museum. He exhibited at the New England Arts Club, was a founder-member of the National Portrait Society in 1911 and a member of both the International Society from1913 and the Royal Academy from 1924. His work is in the National Maritime Museum, the National Portrait Gallery and the Tate Gallery.