Includes correspondence with John Biggs-Davison MP (includes a letter of congratulation to MT on her becoming Party Leader, February 1975; Biggs-Davison’s notes on MT’s meeting with Northern Ireland politicians at Stormont,14 November 1975, with a copy of MT’s handwritten reply; a copy of MT’s handwritten letter thanking Biggs-Davison for sending her briefing material in French, 4 January 1976; and Biggs-Davison’s note on his meeting with officers and others of the Ulster Unionist Council, 19 March 1976)