George Washington
Kingdom of Great Britain
John Adams
Kingdom of Sweden
Thomas Jefferson
Kingdom of Prussia
James Madison
Kingdom Hawaii
James Monroe
Zulu Kingdom
John Quincy Adams
Empire of Brazil
Andrew Jackson
United Kingdoms of Sweden and Norway
Martin Van Buren
Kingdom of France
William Henry Harrison
Kingdom of Portugal
John Tyler
Kingdom of Greece
James K. Polk
Kingdom of Saxony
Zachary Taylor
Mughal Empire
Millard Fillmore
Austrian Empire
Franklin Pierce
United Kingdom of Great Britain and Ireland
James Buchanan
Papal States
Abraham Lincoln
Kingdom of Siam
Andrew Johnson
Second French Empire
Ulysses S. Grant
Kingdom of Italy
Rutherford B. Hayes
Ottoman Empire
James Garfield
Kingdom of Romania
Chester A. Arthur
Kingdom of Belgium
Grover Cleveland (first term)
Joseon (Korea)
Benjamin Harrison
Kingdom of Dahomey
Grover Cleveland (second term)
Grand Duchy of Luxembourg
William McKinley
Empire of Great Japan
Theodore Roosevelt
Russian Empire
William Howard Taft
German Empire
Woodrow Wilson
Kingdom of Norway
Warren G. Harding
Kingdom of Iraq
Calvin Coolidge
Kingdom of Egypt
Herbert Hoover
Kingdom of the Netherlands
Franklin D. Roosevelt
Empire of Great Japan
Harry S. Truman
Kingdom of Cambodia
Dwight D. Eisenhower
Ethiopian Empire
John F. Kennedy
Kingdom of Thailand
Lyndon B. Johnson
Kingdom of Afghanistan
Richard Nixon
United Kingdom of Great Britain and Northern Ireland
Gerald Ford
Imperial State of Persia
Jimmy Carter
Kingdom of Spain
Ronald Reagan
Kingdom of Denmark
George H. W. Bush
Principality of Liechtenstein
Bill Clinton
Principality of Monaco
George W. Bush
Hashemite Kingdom of Jordan
Barack Obama
Kingdom of Morocco