What if the US made a habit of numbering their presidents, like monarchies do with their kings and queens?
I've gone ahead and drawn up a list; for the purposes of this list, Jimmy Carter and Bill Clinton are counted as James and William, respectively:
George I Washington
John I Adams
Thomas I Jefferson
James I Madison
James II Monroe
John II Quincy Adams
Andrew I Jackson
Martin I Van Buren
William I Henry Harrison
John III Tyler
James III K. Polk
Zachary I Taylor
Millard I Fillmore
Franklin I Pierce
James IV Buchanan
Abraham I Lincoln
Andrew II Johnson
Ulysses I S. Grant
Rutherford I B. Hayes
James V A. Garfield
Chester I A. Arthur
Grover I Cleveland
Benjamin I Harrison
Grover I Cleveland
William II McKinley
Theodore I Roosevelt
William III Howard Taft
Woodrow I Wilson
Warren I G. Harding
Calvin I Coolidge
Herbert I Hoover
Franklin II D. Roosevelt
Harry I S. Truman
Dwight I D. Eisenhower
John IV F. Kennedy
Lyndon I B. Johnson
Richard I Nixon
Gerald I Ford
Jimmy VI Carter
Ronald I Reagan
George II H. W. Bush
Bill IV Clinton
George III W. Bush
Barack I Obama
I've gone ahead and drawn up a list; for the purposes of this list, Jimmy Carter and Bill Clinton are counted as James and William, respectively:
George I Washington
John I Adams
Thomas I Jefferson
James I Madison
James II Monroe
John II Quincy Adams
Andrew I Jackson
Martin I Van Buren
William I Henry Harrison
John III Tyler
James III K. Polk
Zachary I Taylor
Millard I Fillmore
Franklin I Pierce
James IV Buchanan
Abraham I Lincoln
Andrew II Johnson
Ulysses I S. Grant
Rutherford I B. Hayes
James V A. Garfield
Chester I A. Arthur
Grover I Cleveland
Benjamin I Harrison
Grover I Cleveland
William II McKinley
Theodore I Roosevelt
William III Howard Taft
Woodrow I Wilson
Warren I G. Harding
Calvin I Coolidge
Herbert I Hoover
Franklin II D. Roosevelt
Harry I S. Truman
Dwight I D. Eisenhower
John IV F. Kennedy
Lyndon I B. Johnson
Richard I Nixon
Gerald I Ford
Jimmy VI Carter
Ronald I Reagan
George II H. W. Bush
Bill IV Clinton
George III W. Bush
Barack I Obama