[2] Following his father's death in 1905, he succeeded as the 25th Chief ("Lochiel") of Clan Cameron and laird of Achnacarry Castle; which came with some 100,000 acres that included Ben Nevis.

He served in South Africa 1899-1900 during the Second Boer War, where he was part of the Kimberley relief force, and was wounded at the Battle of Belmont (November 1899).

[4] He was in South Africa for the end of the war, and was invalided home in July 1902, when he left Cape Town on the SS Canada, returning to Southampton.

[9] From 1920 to 1936, he was aide-de-camp (ADC) to King George V.[10] He was invested as a Knight of the Order of the Thistle (KT) in 1934, being the first non-peer, or baronet, to receive that honour.

[14] During the Second World War, he vacated his residence of Achnacarry to the military for 25,000 soldiers to undergo elite commando training between 1942 and 1945.