Jack Hamilton (Jake) Warren was a diplomat, civil servant and banker. Jake Warren began his career at the Department of External Affairs in 1945 after serving in the Royal Canadian Navy during World War II, but served in civil service posts from the late 1950s to early 1970s:Deputy Minister, Department of Trade and Commerce
- Occupation
- diplomat
- Position held
- Canadian ambassador to the United States
- Citizenship
- Canada
- Born
- April 10, 1921
- Died
- April 1, 2008