• Hudson, E.J.B. Papers: Boxes 4 and 5
  Archive: Papers
  Coopers Hill Magazine: 1897-1945 (incomplete)
• Hudson, E.J.B. Papers: Box 3
  Archive: Papers
  Clarke, George Sydenham: Practical Geometry and Engineering Drawing. London, n.d. Technical Instructions: Department of Telegraphs. 2 vols. Illus. Simla, 1888. Professor Reilly’s Course of Mechanics applied to Construction. Diagrams. n.d. n.p. […]