5. London Colney: December 18, 1917–February 25, 1918
- #15 London, Colney No. 56 Training Squadron, Royal Flying Corps. Near St. Albans, December 18, 1917
- #16 No. 56 Training Squadron, Royal Flying Corps., December 23–24, 1917
- #17. London Colney, December 24, 1917
- [Cablegram] [St. Albans]
- #18 London Colney, December 28, 1917
- [#19] London Colney, January 8, 1918
- #20 Royal Flying Corps, London Colney, Herts., Jan. 14, 1918
- #22 Royal Flying Corps, London Colney, Jan. 21, 1918.
- #23 Peahen Hotel, St. Albans,, January 24, 1918
- General Home series #24 Royal Flying Corps, London Colney, Herts., [January 26, 1918]
- #25 Royal Flying Corps, London Colney, January 26, 1918.
- [#26] Royal Flying Corps, London Colney, January 27, 1918
- #27 London Colney, Thursday, January 31, 1918
- #28 London Colney, February 1, 1918.
- #29 London Colney, February 10, 1918
- #30 No. 56 Training Squadron, Royal Flying Corps. London, Colney, February 14, 1918
- From Parr’s Pilot’s Flying Log Book
- #31 London Colney, February 18, 1918
- Oakland Manufacturing Co. London Colney, February 20, 1918
- From Parr’s Pilot’s Flying Log Book.
- Photos and illustrations for chapter 5