Sir Daniel Cooper, 1st Baronet was a nineteenth-century politician, merchant and philanthropist in the Colony of New South Wales. He served as the first speaker of the Legislative Assembly of the colony and was a noted philatelist.

(Arthur William) Douglas Cooper, who also published as Douglas Lord, was a British art historian, art critic and art collector. He mainly collected Cubist works. He was involved with investigating who had dealt with stolen art during the war. After the war he bought a chateau and converted it into a gallery of early cubist art.