He was introduced to this pastime by van Horne in 1908, and purchased three paintings by Goya before 1911, and a Velazquez by 1912. Dunn was pained when forced by the Fischer debacle to liquidate his art collection in 1914. The transaction included 13 paintings and included Holbein, Bronzino, Manet and El Greco. Dunn commissioned seventeen portraits of participants at the Versailles Conference by Sir William Orpen, amongst whom were Woodrow Wilson and George Barnes. At the height of the depression, commissioned another dozen, this time of his friends like Lord Greenwood, Lord Castlerosse and Lord Beaverbrook, by a down-on-his-luck Sickert. 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. Personal In 1901, James Dunn was married to Gertrude Paterson Price, the daughter of a prosperous Quebec City lumber dealer. They had five children before divorcing in 1926: Mona Dunn (c. 1902–1928). Widely described as 'the most beautiful girl in England' she became at 17 when he met her in Paris in 1919 the mistress of Lord Birkenhead, who was then Lord Chancellor in the Coalition Cabinet of David Lloyd George. She married in 1925 Edmund Tattersall, a war hero of the 5th Dragoon Guards with whom she had in May 1927 a daughter, Monica. Her portrait by William Orpen hangs in the Beaverbrook Art Gallery, Fredericton, New Brunswick, Canada, and may be viewed on their web-site. Her early death on 19 December 1928 from peritonitis was a crushing blow to her father. It became the subject of an occasional poem by Shane Leslie, which was published by the Ashendene Press. Sir Philip Gordon Dunn, 2nd Baronet Dunn (1905–1976), who was father of two daughters: the author Nell Dunn, and Serena Dunn, later Lady Rothschild. Kathleen Mabel Dunn (1907–1969) - she married in 1947 Colonel Sir Robert Philip Wyndham Adeane, O.B.E. (1905–79), kt., of Babraham Hall. Joan Molesworth Dunn (1908–1982)