The Cornish Church Guide Truro: Blackford, 1925 (only in part by Henderson)
Contents:- Part I: Historical. Celtic kalendar; History of the ancient bishopric in Cornwall(*); Additional notes on the ancient bishopric; List of bishops, from AD 931 to the present time; The restoration of the Cornish bishopric(*); Parochial history: notes on all the parishes; Particulars of the formation of new ecclesiastical parishes; The architecture of the Cornish parish church (*); Cornish church plate(*); The Celtic crosses of Cornwall; The holy wells of Cornwall(*). Part II: Administrative(*). Sections marked (*) are not by Henderson.
The Cornish Church Guide and Parochial History of Cornwall. Truro: D. Bradford Barton, 1964 (a reissue of “Parochial History of Cornwall”, the author's principal contribution to The Cornish Church Guide published in 1925) ISBN0-85153-052-4
The Ecclesiastical History of Western Cornwall. 2 vols. Truro: Royal Institution of Cornwall; D. Bradford Barton, 1962