Gilbert & Sullivan

Robin James Wilson is an emeritus professor in the Department of Mathematics at the Open University, having previously been Head of the Pure Mathematics Department and Dean of the Faculty. Wilson's academic interests lie in graph theory, particularly in colouring problems, e.g. the four colour problem, and algebraic properties of graphs. He also researches the history of mathematics, particularly British mathematics and mathematics in the 17th century and the period 1860 to 1940, and the history of graph theory and combinatorics. He has strong interests in music, including the operas of Gilbert and Sullivan, and is the co-author (with Frederic Lloyd) of Gilbert and Sullivan: The Official D'Oyly Carte Picture History. --Wikipedia Photo Attribution: Jamesfranklingresham at English Wikipedia, CC BY-SA 3.0 , via Wikimedia Commons