John McGrath was a significant member of that group of prolific and successful British socialist playwrights of the 1970s and 1980s, which included John Arden, Howard Barker, Edward Bond, Howard Brenton, Caryl Churchill, David Edgar, Trevor Griffiths, David Hare, David Mercer and
Patterson, Michael W.. "John McGrath". The Literary Encyclopedia. First published 03 May 2006; last revised 30 November -1.
[http://www.litencyc.com/php/speople.php?rec=true&UID=11712, accessed 25 April 2015.]