Alternate Presidents/PMs from AH.com Timelines

This idea came to me: What if I checked through AH.Com timelines, and made a list of presidents/PMs on it? If it is still being worked on, right next to it's name I will write WIP next to the TL's name.
 
The Collapse of an American Party System (WIP)

Part One: https://www.alternatehistory.com/fo...rican-party-system-part-one-implosion.344817/
Part two: https://www.alternatehistory.com/fo...rican-party-system-part-two-collision.360888/

28. Woodrow Wilson (Democratic), 1913-1920 (died)
29. Thomas R. Marshall (Democratic), 1920-1921

30. Warren G. Harding (Republican), 1921-1925
31. Nathan Miller (Republican), 1925-1929
32. Edwin Morrow (Republican), 1929-1930 (died)
33. J. Calvin Coolidge (Republican), 1930-1931 (died)
34. Andrew Mellon (Republican), 1931-1932 (resigned)
35. Bertrand Snell (Republican), 1932-1933

36. Floyd B. Olson (Progressive), 1933-1936 (died)
37. Fiorello LaGuardia (Progressive), 1936-
 
No Southern Strategy (WIP)

https://www.alternatehistory.com/fo...cations-of-an-alternate-1964-election.356134/

USA

37. Lyndon B. Johnson (Democratic), 1963-1969
38. Hubert H. Humphrey (Democratic), 1969-1973 (died)
39. Henry Howell (Democratic), 1973-1977

40. Roger MacBride (Republican), 1977-1981 (resigned)
41. Roy Cohn (Republican), 1981-1989

42. W. Fox McKeithen (Democratic), 1989-

UK

66. Alec Douglas Home (Conservative), 1963-1967
67. Iain MacLeod (Conservative), 1967-1971

68. Peter Shore (Labour), 1971-1981
69. Alan Clark (Conservative), 1981-

Canada

15. Pierre Trudeau (Liberal), 1968-1979
16. Alan Eagleson (Progressive Conservative), 1979-1992

17. Erik Nielsen (Progressive Conservative), 1992-1994
18. Paul Hellyer (Social Credit), 1994-
 
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