Correspondents include:
Danby, J.F. (University College of North Wales, Bangor)
Das Gupta. R.K. (Jadavpur University, India)
Dawson, G.E. (Folger Shakespeare Library, USA)
Dean, L.F. (University of Connecticut, USA)
De Gruyter, Dom. (National Theatre of Belgium)
Dick [possibly R.W. 'Dick' David]
Diether, J.
Doubleday and Company, Inc.
Dupont, V. (University of Toulouse, France)
University of Dublin (Trinity College, signed 'Philip').