Brooks was born in Cambridge on 7 May 1875 and educated at a private boarding school in Hastings[4] before going on to King's College, London.[5] In 1906 he married Alida Johanna de Jongh in Hilversum. Their children included Mercy Brookes (born Sarawak 1908) and Cecil Jocelyn Talida Brooks (born 1913, educated at Monkton Combe School).
From 1896 to 1897 Brooks worked as an Assistant at Stanger and Blount's Laboratories and Testing Works in Westminster, London. He became Chemist to the Sussex Portland Cement Co., Newhaven, East Sussex and then from 1897 to 1900 he was Metallurgical Chemist to Quirk Barton and Co., London. In 1900 he became Cyanide Manager, Borneo Company, at their gold mine at Bidi, Sarawak, prospecting for gold ore in new districts and research on the treatment of arsenical antimonial gold ore. From 1904 to 1906 he worked as a Metallurgist to Quirk, Barton and Co undertaking research in treatment of Cobalt silver ore and bismuth ores, ultimately erecting a bismuth plant and becoming Departmental Manager at the plant. Between 1907 and 1910 he returned to Sarawak as Cyanide Manager at Bidi and then later at Bau undertaking research on the Pahang Consolidated Co.'s tin ores, soils and agricultural matters. From 1912 to 1921 he was Chief Chemist and Metallurgist to the Simau Gold Mining Co., near Bencoolen in Sumatra.[6]
In 1911 he and his family were living in Thetford where he owned property.[7][8]
He returned to England with his Dutch wife Alida in 1924. He remarried in 1927, to Ada Lilian Beatrice Greenbank, née Harbord, who was born in Cork in June 1875.[4]
^Beolens, Bo; Watkins, Michael; Grayson, Michael (2009). The Eponym Dictionary of Mammals. Baltimore: Johns Hopkins University Press. xviii + 574 pp. ISBN978-0801893049. (p. 58).
^ abcBeolens, Bo; Watkins, Michael; Grayson, Michael (2011). The Eponym Dictionary of Reptiles. Baltimore: Johns Hopkins University Press. xiii + 296 pp. ISBN978-1-4214-0135-5. ("Alida", p. 5; "Brooks, C.J.", p. 40).