In this article, Poonam M. Ganglani investigates how the preserved manuscripts in the Lord Chamberlain's archives of John Hart's stage version of Lady Chatterley's Lover in 1961 reflect the social and theatrical landscape of the times. The notion of the Lord Chamberlain as a custodian of morals, the dangerous power attributed to stage semiotics, and the response to sexual impropriety on stage are among the areas discussed. The Lord Chamberlain's correspondence files offer the only significant glimpse into this theatrical adaptation of Lawrence's novel, as into other unpublished plays of the time; this article also investigates the ways in which the Lord Chamberlain's archives in the British Library, London, serve as a unique and valuable tool for the post-war British theatre historiographer in research related to such unpublished plays. Poonam M. Ganglani is a postgraduate under the Mundus Masters ‘Crossways in European Humanities’ international study programme, having studied in three European universities over two years: the Université de Perpignan Via Domitia in France, the University of Sheffield in England, and the Università degli studi di Bergamo in Italy.