1979. Edinburgh Arts participants and crew members on the 'Marques' sailing ship. Edinburgh Arts 1979.
1972. David Helder directs performance event from summit of Arthur's Seat, Holyrood Park, Edinburgh. Edinburgh Arts 1972.
1973. Letter to Demarco from Peter Cook (ref. Cook's resignation from directorship of the ICA, London).
1976. David Jansheski in Bruce Nauman's Green Light Corridor installation. Panza Collection, Varese, Italy. Edinburgh Arts 1976.
1976. Letter (page 1/2) to Demarco from Barrie and Marianne Hesketh, directors of the Mull Little Theatre, Scotland. Ref. Edinburgh Arts 1976.
1976. Letter from Paul Overy, art critic, The Times, to the Scottish Arts Council, ref. Edinburgh Arts.