Source???

[DUKyleXY]

This is from the Center for the Study of the College Fraternity, Bloomington, IN.

"The North-American Interfraternity Conference has also compiled a list of U.S. Presidents who were/are fraternity members. Contrary to the statistic quoted above, no president prior to 1877 was a fraternity member and seven presidents since then have not been fraternity men. President who were fraternity members are: President
Years in Office
Fraternity
Rutherford B. Hayes
1877-1881
Delta Kappa Epsilon
James Garfield
1881
Delta Upsilon
Chester Arthur
1881-1885
Psi Upsilon
Benjamin Harrison
1989-1893
Phi Delta Theta
William McKinley
1897-1901
Sigma Alpha Epsilon
Theodore Roosevelt
1901-1909
Delta Kappa Epsilon/Alpha Delta Phi
William Howard Taft
1909-1913
Psi Upsilon
Woodrow Wilson
1913-1921
Phi Kappa Psi
Calvin Coolidge
1923-1929
Phi Gamma Delta
Franklin D. Roosevelt
1933-1945
Alpha Delta Phi
Harry S. Truman
1945-1953
Lambda Chi Alpha
Dwight D. Eisenhower
1953-1961
Tau Epsilon Phi
John F. Kennedy
1961-1963
Phi Kappa Theta
Gerald R. Ford
1974-1977
Delta Kappa Epsilon
Ronald Reagan
1981-1989
Tau Kappa Epsilon
George H. W. Bush
1989-1993
Delta Kappa Epsilon
George W. Bush
2001-
Delta Kappa Epsilon
"

So there, since 1877 there have been 17 Greek affiliated Presidents, there have also been 7 unaffiliated.
Sorry to put a rain on anyones parade!

[TSteven]

Originally Posted by DUKyleXY

This is from the Center for the Study of the College Fraternity, Bloomington, IN.

"The North-American Interfraternity Conference has also compiled a list of U.S. Presidents who were/are fraternity members. Contrary to the statistic quoted above, no president prior to 1877 was a fraternity member and seven presidents since then have not been fraternity men. President who were fraternity members are: President
Years in Office
Fraternity
Rutherford B. Hayes
1877-1881
Delta Kappa Epsilon
James Garfield
1881
Delta Upsilon
Chester Arthur
1881-1885
Psi Upsilon
Benjamin Harrison
1989-1893
Phi Delta Theta
William McKinley
1897-1901
Sigma Alpha Epsilon
Theodore Roosevelt
1901-1909
Delta Kappa Epsilon/Alpha Delta Phi
William Howard Taft
1909-1913
Psi Upsilon
Woodrow Wilson
1913-1921
Phi Kappa Psi
Calvin Coolidge
1923-1929
Phi Gamma Delta
Franklin D. Roosevelt
1933-1945
Alpha Delta Phi
Harry S. Truman
1945-1953
Lambda Chi Alpha
Dwight D. Eisenhower
1953-1961
Tau Epsilon Phi
John F. Kennedy
1961-1963
Phi Kappa Theta
Gerald R. Ford
1974-1977
Delta Kappa Epsilon
Ronald Reagan
1981-1989
Tau Kappa Epsilon
George H. W. Bush
1989-1993
Delta Kappa Epsilon
George W. Bush
2001-
Delta Kappa Epsilon
"

So there, since 1877 there have been 17 Greek affiliated Presidents, there have also been 7 unaffiliated.
Sorry to put a rain on anyones parade!

FYI: Grover Cleveland, the 22nd and 24th President of the United States (1885–1889 and 1893–1897), was an honorary initiate of Sigma Chi Fraternity.

My understanding as to why he isn't listed by the Center for the Study of the College Fraternity or NIC is because he was initiated after his first term but before his second term. So he wasn't a member at the time he was first sworn into office.

[Tom Earp]

Most if not all were members of the Masons.

While not Greek Social Organizations it is still in a since a Fraternal group.

Also, many GLOs have basis goint to the Masons in their Rituals.

You would have to be a member of both to understand.