1. In the Royal Navy Lieutenant Charles Rideal served on HMS Orion
2. Sir William Bate Hardy FRS 6 April 1864–23 January 1934. In: Rideal EK (ed) The Collected Scientific Papers of Sir William Bate Hardy, Cambridge University Press, Cambridge, 1936.
3. Ulick Richardson Evans CBE, FRS (1889–1980) became a metallurgist and corrosion expert. After a year in Germany he returned to Cambridge and became an eminent professor
4. S. Rideal D. Sc (Lond.) and E. K. Rideal B. A. (Cantab.) Ph. D. (Bonn) (1914) Water supplies their purification, filtration, and sterilisation; a handbook for the use of local and municipal authorities, Crosby Lockwood and Sons, London, 1914. Their professional address was given as 28 Victoria Street, Westminster, London.
5. Rideal EK, Taylor HS (1919) Catalysis in theory and practice. Macmillan and Co, London