1971. Letter from Demarco to Mark Goldberg (RDG Board member). Ref. forthcoming Ian Hamilton Finlay exhibition at the RDG (December 1971)
1973. Letter (page 3/2) from Ian Hamilton Finlay to Demarco, ref. Finlay/ Demarco collaboration 'A Calm in a Tea-cup' (Wild Hawthorn Press, 1973)
1973. Letter (page 1/3) from Ian Hamilton Finlay to Demarco, ref. Finlay/ Demarco collaboration 'A Calm in a Tea-cup' (Wild Hawthorn Press, 1973)
1973. Letter from Ian Hamilton Finlay to Adelaide Sharnee Harris (RDG staff), ref. Edinburgh Arts 1973.
1973. Letter (page 2/3) from Ian Hamilton Finlay to Demarco, ref. Finlay/ Demarco collaboration 'A Calm in a Tea-cup' (Wild Hawthorn Press, 1973)