Research papers of Theresa Whistler, comprising notes and draft material for a projected book about the Newbolt circle, 'In the Days of Deep Peace', specifically focussing on the triangular relationship between Henry Newbolt, Margaret Newbolt and Ella Coltman. Includes her maroon notebook, 'Conclusions on Triangle', and letters (some drafts) to Deborah Blake at Duckworth's publishers, 1990s, with a covering note about the papers written in the 2000s.