Sir William Wiseman, 10th Baronet

Sir William George Eden Wiseman, 10th Baronet (1 February 1885 – 17 June 1962) was a British intelligence agent and banker. He was a general partner at American investment bank Kuhn, Loeb & Co. from 1929 till 1960.

Life The grandson of Sir William Wiseman, 8th Baronet, a British naval officer, he was educated at Winchester College and Jesus College, Cambridge. He was appointed a second lieutenant in the Cardigan Royal Garrison Artillery (Militia) on 30 April 1902.

As a businessman, before the outbreak of the First World War he was chairman in London of Hendens Trust. From 1914, he served as a lieutenant colonel with the Duke of Cornwall's Light Infantry but, following injury, transferred to military intelligence. He was sent by Secret Intelligence Service director, Mansfield Smith-Cumming, to establish the agency's office in New York, 'Section V'. As the head of the British intelligence mission in the United States, Wiseman was extensively involved in the counter-intelligence against the Indian seditionists and was ultimately responsible for leaking to New York Police, bypassing diplomatic channels, the details of a bomb plot that led to the uncovering of the Hindu Conspiracy. Wiseman was also a mentor to spy chief William Stephenson.

After the war, Wiseman was a participant in the 1919 Paris Peace Conference. He remained in the U.S. as an employee of Kuhn Loeb, becoming a partner in 1929.