In the late 1940s, he and Christofor, Lady Dunn, developed a friendship with Salvador Dalí. The artist went on to paint the portraits of the couple ( Gala-Salvador Dalí Foundation)( Gala-Salvador Dalí Foundation) which are now on permanent display at the Beaverbrook Art Gallery in Fredericton, New Brunswick along with one of Dalí's greatest pieces, the ""Santiago el Grande"." As well, the art gallery received other works of art that the Dunns collected including a 1650 painting by Jakob van Loo titled ""A Gentleman"" and the Augustus John picture, ""Dorelia"" as well as John's portrait of Sir James Dunn.