Sydney Waterlow was the eldest son of George Sydney Waterlow – the fourth son of
Sir Sydney Waterlow, 1st Baronet – and Charlotte Elizabeth Beauchamp. He was educated at
Eton and
Trinity College, Cambridge, where he gained a first class in the Classics Tripos (B.A. 1900, M.A. 1905). Waterlow joined the Diplomatic Service in 1900. From 1900 to 1901 he served in the Eastern Department of the
Foreign Office. He was an Attaché in
Washington in 1901, was appointed Third Secretary in December 1902, and served as such in Washington from 1902 to 1905. Resigning from the Foreign Office, Waterlow become a
University extension lecturer until the outbreak of
World War I, when he returned to the FO. He rose to be Acting First Secretary in 1919, and participated in the
Paris Peace Conference. From 1922 to 1924 he was Director of the Foreign division of the Department of Overseas Trade, and from 1924 to 1926 he was a Counsellor in the Foreign Office. He was Envoy Extraordinary and Minister Plenipotentiary in
Bangkok from 1924 to 1926, in
Addis from 1928 to 1929, in
Sofia from 1929 to 1933, and in
Athens from 1933 to 1939. Waterlow was also an author, editor and translator of several literary and classical works. In 1920 he was appointed as a
Commander of the Order of the British Empire and in 1935 appointed as a
Knight Commander of the Order of St. Michael and St. George. Waterlow was also appointed to the
Legion of Honour. He died 4 December 1944 at Oare near Marlborough. ==Family==