Was an English ornithologist and military man, best known for his 1912 book The Gamebirds and Waterfowl of South Africa, a collaborative work with Claude Gibney Finch-Davies. Served Sierra Leone 1888-89, South Africa 1899-1902, France 1916. After a stay of two years in Kent, Horsbrugh was again sent to South Africa in 1905 to enforce the imperial peace. He was posted to Bloemfontein, where he and his wife were allocated an officer's house on top of Naval Hill. It was an idyllic location, teeming with birds. Horsbrugh built some large aviaries in the garden so as to acquire first-hand knowledge of their breeding and habits. In June 1905 his younger brother, C.B. Horsbrugh (1874-1952), joined them on Naval Hill, but soon took up employment with the Transvaal Museum in Pretoria under Dr. J. W. B. Gunning. Besides hunting together, the two brothers often made trips into the veld to study birds in their natural habitat. ref. South African Roll of Honour 1914-1918