Papers of Patrick Horsbrugh representing his whole life and career, consisting of extensive office files, environics files, and research files, correspondence, diaries, architectural drawings, artwork such as paintings and drawings, and his Italian thesis; consisting of files labelled PH (Patrick Horsbrugh): a chronological series representing his projects; Churchill Memorial files; correspondence files; environics files; files on individuals and locations associated with environics; diaries 1954-2012; back office files, including High Paddington, Edward Blore, and drop files representing his interest in alternative power sources and transportation; loose letters, including family correspondence; binders of professional correspondence by project; syllabi for Horsburgh classes and theses directed by Horsbrugh.