Friedman, Susan Stanford.  Analyzing Freud: Letters of H.D., Bryher, and Their Circle.  New York: New Directions, 2002. 

This is a collection of letters circulated by H.D., Bryher and their circle in the 1930s when H.D. was in analysis with Freud. The letters are from the period AFTER H.D. and Bryher worked on the film journal, Close Up but there are references to film in general and to G.W. Pabst in particular. Although there are no letters to or from Pabst, H.D. and Bryher both write to others about him with great enthusiasm.