She was initially educated in Bedford and later Scotland. When she was 12 year of age she met Alastair Sim while appearing in a play, The Land of Heart's Desire, organised by Scottish Community Drama Association.Michael Gilbert, 'Sim, Alastair George Bell (1900–1976)', rev. Oxford Dictionary of National Biography, Oxford University Press, 2004; online edn, Jan 2011 accessed 23 June 2017 Sim was an elocution teacher at an Edinburgh school at the time and was 28 years of age when they met. Plaskitt left school aged 14 and joined Sim's school of drama as his secretary after her mother gave her permission.Naomi Sim, The Independent, Retrieved 23 June 2017 Meanwhile, Sim was the Fulton lecturer in elocution at New College, Edinburgh.
