List of people who have served in all three branches of the United States federal government

Columns: Person | Executive branch service | Legislative branch service | Judicial branch service
Guy T. Helvering | Commissioner of Internal Revenue , 1933-1944 | Representative , Kansas , 1913-1919 | U.S. District Judge , U.S. District Court for the District of Kansas , 1943-1946 | John J. Hickey | United States Attorney , District of Wyoming , 1949-1953 | Senator , Wyoming , 1961-1962 | U.S . Circuit Judge , U.S. Court of Appeals for the Tenth Circuit , 1966-1970 | David M. Key | Postmaster General , 1877-1880 | Senator , Tennessee , 1875-1877 | U.S. District Judge , U.S. District Court for the Eastern District of Tennessee and U.S. District Court for the Middle District of Tennessee , 1880-1895 | Lucius Quintus Cincinnatus Lamar II | Secretary of the Interior , 1885-1888 | Representative , Mississippi , 1857-1860 ; 1873-1877 Senator , Mississippi , 1877-1885 | Associate Justice of the Supreme Court of the United States , 1888-1893 | John Laurance | Judge Advocate General , 1777-1782 | Representative , New York , 1789-1793 Senator , New York , 1796-1800 | U.S. District Court , U.S. District Court for the District of New York , 1794-1796 | Oscar Raymond Luhring | Assistant Attorney General for the Criminal Division , 1925-1930 | Representative , Indiana , 1919-1923 | U.S. District Judge , U.S. District Court for the District of Columbia , 1930-1944

Example questions:
When was the executive service branch created that was held by the seventh governor of the most densely populated state , who served in all 3 US branches ? | What President held office when the member who served all 3 branches of government from the state whose capitol is Charleston served as Secretary of the Navy ? | Which member from the Bluegrass State served in all 3 branches of government , including one that falls within the Department of the Treasury ?

Answers:
1798 | Rutherford B. Hayes | Walter Evans