I'm sorry to announce that I have no more the time nor the interest to further continue this TL. I think I have taken a bad format for this story. I will try to take a better one next time.
Here we go for a list of alternate Presidents.
34. Thomas Edmund Dewey
Tenure: 20/1/1949-20/1/1953
Party: Republican
Home State: New York
Previous function: Governor of New York
Age at Inauguration Day: 46
Vice-President: Earl Warren (CA)
Religion: Episcopalian
Particular remarks: Lost the electoral vote.
Defeated in 1948: Harry S. Truman/Alben Barkley (D) - Strom Thurmond/Fielding Wright (Dixiecrat)
35. Carey Estes Kefauver
Tenure: 20/1/1953-20/1/1961
Party: Democrat
Home State: Tennessee
Previous function: Senator of Tenneesee
Age at Inauguration Day: 49
Vice-President: Francis Eugene Walter (PA)
Religion: Baptist
Defeated in 1952: Thomas E. Dewey/Earl Warren (R)
Defeated in 1956: Joe McCarthy/Christian Herter (R) - Strom Thurmond/John Sparkman (Dixiecrat)
36. James Vincent Forrestal
Tenure: 20/1/1961-22/5/1962
Party: Republican (former Democrat)
Home State: New York
Previous function: Senator of New York
Age at Inauguration Day: 68
Vice-President: Hubert Humphrey (D-MN) (on his ticket: Harold Stassen (MN))
Religion: Roman Catholic (lapsed)
Particular remarks: Election bring to the Congress; died in office
Defeated in 1960: Francis E. Walter/Hubert Humphrey (D) - Orval Faubus/Richard Russell, Jr. (Dixiecrat)
37. Hubert Horatio Humphrey
Tenure: 22/5/1962-20/1/1965
Party: Democrat
Home State: Minnesota
Previous function: Vice-President
Age at Inauguration: 50
Vice-President: None
Religion: United Methodist
Particular remarks: Only Vice-President to succeed a President who hadn't shared the ticket with him.
38. Nelson Aldrich Rockefeller
Tenure: 20/1/1965-20/1/1973
Party: Republican
Home State: New York
Previous function: Governor of New York
Age at Inauguration Day: 56
Vice-President: George W. Romney (MI)
Religion: Baptist
Defeated in 1964: Hubert Humphrey/John Connally (D) - George Wallace/Russell B. Long (Dixiecrat)
Defeated in 1968: George Wallace/Daniel Brewster (D)
39. Henry Martin Jackson
Tenure: 20/1/1973-22/9/1975
Party: Democrat
Home State: Washington
Previous function: Senator of Washington
Age at Inauguration Day: 60
Vice-President: Wilbur Mills (AR, 1973-1974) - Edmund Muskie (MA, 1974-1975)
Particular remarks: Assassinated by Sara Jane Moore; Vice-President forced to resign after a public scandal
Defeated in 1972: John A. Volpe/Ronald Reagan (R)
40. Edmund Sixtus Muskie
Tenure: 22/9/1975-20/1/1977
Party: Democrat
Home State: Maine
Previous function: Vice-President
Age at Inauguration: 64
Vice-President: Robert Byrd (WV)
Religion: Roman Catholic
Particular remarks: First President to have never been elected, as President or Vice-President
41. Howard Henry Baker, Jr.
Tenure: 20/1/1977-30/3/1981
Party: Republican
Home State: Tennessee
Previous function: Senate Majority Leader
Age at Inauguration Day: 51
Vice-President: Donald Rumsfeld (IL)
Religion: Presbyterian
Particular remarks: Assassinated by John Hinckley, Jr.
Defeated in 1976: Ed Muskie/Robert Byrd (D)
Defeated in 1980: Ernest Hollings/Dale Bumpers (D)
42. Donald Henry Rumsfeld
Tenure: 30/3/1981-20/1/1985
Party: Republican
Home State: Illinois
Previous function: Vice-President
Age at Inauguration: 48
Vice-President: William E. Simon (CA)
Religion: Presbyterian
43. John Herschel Glenn, Jr.
Tenure: 20/1/1985-20/1/1993
Party: Democrat
Home State: Ohio
Previous function: Senator of Ohio
Age at Inauguration Day: 63
Vice-President: Mario Cuomo (NY)
Religion: Presbyterian
Particular remarks: First astronaut to reach the Presidency
Defeated in 1984: Donald Rumsfeld/William E. Simon (R)
Defeated in 1988: George H. Bush/Paul Laxalt (R)
44. Henry Ross Perot
Tenure: 20/1/1993-20/1/1997oo
Party: None (later Reform)
Home State: Texas
Previous function: None
Age at Inauguration Day: 62
Vice-President: Colin Powell (NY)
Particular remarks: First Independent to be elected President; first African American Vice-President
Defeated in 1992: Bob Dole/Pete DuPont (R) - Mario Cuomo/Dick Gephardt (D)
45. Lawrence Douglas Wilder
Tenure: 20/1/1997-11/9/2001
Party: Democrat
Home State: Virginia
Previous function: Former Governor of Virginia
Age at Inauguration Day: 66
Vice-President: Warren Beatty (CA)
Religion: Baptist
Particular remarks: First African American President; killed by an unknown Islamist Fundamentalist terrorist
Defeated in 1996: Lamar Alexander/Pete Wilson (R) - Ross Perot/Colin Powell (Reform)
Defeated in 2000: John McCain/Paul Wellstone (R)
46. Henry Warren Beatty
Tenure: 11/9/2001-20/1/2005
Party: Democrat
Home State: California
Previous function: Vice-President
Age at Inauguration: 64
Vice-President: Bob Kerrey (Nebraska)
Religion: Baptist
47. Patricia Campbell Hearst
Tenure: 20/1/2005-...
Party: Republican
Home State: California
Previous function: Governor of California
Age at Inauguration Day: 50
Vice-President: Rudolph Giuliani (NY)
Particular remarks: First Female President
Defeated in 2004: Warren Beatty/Bob Kerrey (D)
Defeated in 2008: Mike Gravel/Joe Biden (D)