(en) Brown, Ivor, rev. Marc Brodie "Agate, James Evershed (1877–1947)", Oxford Dictionary of National Biography, Oxford University Press, 2004
oxfordreference.com
(en) Hartnoll, Phyllis, and Peter Found (eds) "Agate, James Evershed"" The Concise Oxford Companion to the Theatre, Oxford University Press, 1996. Oxford Reference Online
(en) Victor Emeljanow, "Agate, James", The Oxford Encyclopedia of Theatre and Performance, Oxford University Press, 2003
ukwhoswho.com
(en) "Agate, James Evershed", Who Was Who, A & C Black, 1920–2008 ; édition en ligne, Oxford University Press, décembre 2007
