1973. Letter from Ian Hamilton Finlay to Adelaide Sharnee Harris (RDG staff), ref. Edinburgh Arts 1973.
Thoughts on 'Edinburgh Arts 73' By Richard Demarco (in a letter to Sandy Nairne) (p. 3), 24 March 1973.
1973. Letter (page 1/2) from Demarco to Arnold Herstand, ref. Twelve Hour Lecture blackboards by Joseph Beuys.
1980. Statement by publisher George Riches, ref. Scottish Arts Council support for Edinburgh Arts 1980.
1973. Newsletter (page 2/2). Ref. Proposed 'Regatta' event at Ian Hamilton Finlay's Stonypath, Edinburgh Arts 1973, and the Finlay/ Demarco collaboration 'A Calm in a Tea-cup' (Wild Hawthorn Press, 1973).
Thoughts on 'Edinburgh Arts 73' By Richard Demarco (in a letter to Sandy Nairne), (p. 2), 24 March 1973.
1986. Letter from Eva Beuys to Demarco (Ref. proposed publication of Demarco interview with Beuys in 1982).