Answer:
1. Charles C. Pinckney - US representative in the XYZ Affair
2. John Adams - US president
3. Thomas Jefferson - US Secretary of State
Explanation:
Charles C. Pinckney - US representative in the XYZ Affair: he took this position between 1796 to 1797 under President George Washington, which was originally United States Minister to France
2. John Adams - US president: he was the 2nd United States President between 1797 to 1801
3. Thomas Jefferson - US Secretary of State: he was the 1st United Secretary of State between 1790 to 1793. He later became vice president to John Adams between 1797 to 1801.
