Includes administrative correspondence with Radio Éireann relating to his telephone account, complaints and other issues, correspondence with Hilton Edwards regarding an inspection Niall Montgomery carried out, as well as fees, invoices and receipts relating to talks and articles Montgomery did over the years for Harvard and John Hopkins Universities, Trinity College Dublin and University College Dublin, 'The Irish Times', Radio Teilifís Éireann, Radio Éireann and British Broadcasting Corporation, 'The Architects’ Journal', The Building Centre, Córas Tráchtála and Bord Fáilte. Also includes a file index to Niall Montgomery’s writings over the years.