Appointed Second Secretary in 1901, then First Secretary in 1908 to
Constantinople, Hohler was posted to Mexico in 1910 and promoted
Counsellor (1915) then
Minister Plenipotentiary (1918). Serving at
Mexico City during
World War I, he was involved in the interception of the
German Zimmermann Telegram used to promote the
United States entry into the
war. Although acting anonymously at the time, he later identified himself as the mysterious "Mr. H" responsible for intercepting the inflammatory telegram. In 1920, Hohler was appointed
High Commissioner to
Budapest,
Hungary, where he made a bold effort to convince the British Government to revise the terms of the
Trianon Treaty to better favor
Hungary. Then head of
HBM Commercial Legation to
Bogotá,
Colombia, Sir Thomas served in
Chile (1924–28) before becoming
British Minister to Denmark (1928–1933). In 1942 his
Diplomatic Petrel was published. Appointed in 1934 a
Justice of the Peace for
Kent, Sir Thomas was seated at
Fawkham Manor where he died in 1946, aged 75. ==Family==