He was born in 1878 and was gazetted to the Rifle brigade in 1898. He joined the 2nd Battalion in Crete and from there proceeded to South Africa where he served throughout the defence of Ladysmith, took part in the sortie on Surprise Hill and the action on Wagon Hill where he was slightly wounded. He was also at the actions at Laings Nek, Bergendal and the operations near Lyndenburg where he served with the Mounted Infantry and later on as Station Staff Officer. He received the Queen's Medal with three clasps, the King's Medal with two clasps and was mentioned in Despatches. He became Lieutenant in April 1900 and was promoted Captain 1904 while in India. He was promoted Major in 1914 and was killed in action at Neuve Chapelle three and a half months later. Major Harrison was married to the daughter of Sir E. F. Wodehouse, K.C.V.O., C.B., and had a son and a daughter.
Below is a photograph of the Harrison family house in Oxfordshire where Cecil Harrison spent his childhood. Since it was sold by Cecil's mother in the 1920s the house has been used by the BBC ( George Orwell worked there at one time) and as a School.