Which person is source-backed for U.S. president with validity March 4, 1801 to March 4, 1809?

Answer options

• Correct: Thomas Jefferson
  "Thomas Jefferson" - target Thomas Jefferson follows in 1801. Thomas Jefferson is documented for the period 1801-03-04/1809-03-04. The task targets this mapping, and Thomas Jefferson remains correct in this prompt. Thomas Jefferson remains in scope U.S. presidency.
• Option: George Washington
  "George Washington" vs. "Thomas Jefferson" George Washington was the first; misses the target mapping. George Washington is documented for the period 1789-04-30/1797-03-04. The task targets this mapping, so George Washington remains wrong in this prompt. George Washington remains in scope U.S. presidency.
• Option: John Adams
  "John Adams" vs. "Thomas Jefferson" John Adams follows in 1797; misses the target mapping. John Adams is documented for the period 1797-03-04/1801-03-04. The task targets this mapping, so John Adams remains wrong in this prompt. John Adams remains in scope U.S. presidency.
• Option: James Madison
  "James Madison" vs. "Thomas Jefferson" James Madison follows in 1809; misses the target mapping. James Madison is documented for the period 1809-03-04/1817-03-04. The task targets this mapping, so James Madison remains wrong in this prompt. James Madison remains in scope U.S. presidency.

Solution

Thomas Jefferson

"Thomas Jefferson" is correct: Thomas Jefferson follows in 1801. The prompt targets Thomas Jefferson, so the graph keeps this mapping stable against close alternatives. S. president -> Thomas via a direct graph path. Source: Wikidata. As of: 2026-02-13.

Fun fact

role_holder_direct separates time-qualified offices from timeless work roles through valid_time and role_scope. Thomas Jefferson stays anchored with additional dataset context. The graph therefore uses a direct graph path.