 The sale of the Evill/Frost collection at Sotheby's in London in 2011 saw unprecedentedly high prices for Roberts's work, and in the following year "The Chess Players" (1929–30) was sold for over £1 million, also at Sotheby's.David Croll

David Arnold Croll, (born Davud Avrum Croll; March 12, 1900 – June 11, 1991) was a Canadian politician.He served as the mayor of Windsor, Ontario twice.