(b. London, 7 April 1883; d. London, 9 Sept. 1951) Arts campaigner and critic. Fired by the Granville Barker–Vedrenne seasons at the Royal Court, Whitworth began a campaign for theatrical reform, culminating in the 1919 British Theatre Conference which established the British Drama League. Under Whitworth's secretaryship, the League campaigned for the recognition of amateur theatre, for a National Theatre and for a raised profile for drama generally. Whitworth's passionate advocacy of a national community of the theatre is documented in his The Theatre of My Heart (1930) and The Making of a National Theatre (1951). He lived to see local authority theatre funding, the Arts Council and the laying of a foundation stone for a National Theatre.
From The Continuum Companion to Twentieth Century Theatre in Oxford Reference.