Background
Tennant was the eldest son of Francis John Tennant of Innes, Morayshire.
Tennant was the eldest son of Francis John Tennant of Innes, Morayshire.
He was educated at Royal Naval College, Osborne and Royal Naval College, Dartmouth.
They had one son, Iain Mark Tennant. In 1925 she obtained a divorce. Tennant served as a Midshipman, 1908-1910.
In 1910 he became a 2nd Lieutenant in the Scots Guards.
After the outbreak of war in September 1914 he was seconded to the Royal Flying Corps. He served in France, 1914-1916, and as OC for the Reconstruction Finance Corporation and the Royal Air Force in Mesopotamia, 1916-1918.
He was shot down and captured by the Turks while in Mesopotamia, but rescued four days later by armoured cars. From 1918-1919 he was Director of Aeronautics in India.
In 1920 he had published In the Clouds above Bagdad, Being the Records of an Air Commander.
He carried out Shikar expeditions up the White Nile, in India, and the Sinai Peninsula. In 1926 Tennant became prospective Liberal candidate for the Moray and Nairn division and contested the 1929 General Election in which he came third;
He did not stand for parliament again.
In 1924 he was a member of the Oxford Arctic Expedition to Nordaustlandet.