 Complete the following phrase:  Davidson was born in Shooters Hill, Kent, and grew up in Welwyn, Hertfordshire. He was educated at Henley Grammar School and Bute House School, Petersham. In September 1875 he was commissioned Sub-Lieutet in the 4th Foot, but a year later transferred to the 60th Rifles and was posted to the 2nd Battalion in India. Soon afterwards he was promoted Lieutet. He took part in the Second Afghan War in 18781880 and was appointed ADC to Lieutet-General Sir Donald Stewart, and later to Major-General Ross. He served in the 