(The following information was gathered from public sources)
The original KU KLUX KLAN was founded on December 24, 1865 at the law office of
 Judge Thomas M. Jones at Pulaski, Tennessee. The "Jolly Six" as they referred to
themselves were former Confederate Army Veterans.
1. Captain John C. Lester - Knight Hawk
2. Captain John B. Kennedy - Grand Magi

3. Frank O. McCord - Grand Cyclops
4. Calvin E. Jones - (son of Thomas M. Jones)
5. Richard R. Reed - Lictor

6. James R. Crowe - Grand Turk
Grand Cyclops, Grand Magi, Grand Turk, Grand Scribe, Lictors, and Knight Hawks were officers' titles of "The Den". Members were called "Ghouls". Two Lictors were "Outer Guards" and Knight Hawks were "Couriers".
Ku Klux Klan derived from the Greek word Kuklos meaning a circle with no beginning or end. Klan came from the Scottish word Clan referring to a family or a likened group of believers. They added KU to make the name "flow on the tongue" when pronounced.
The Civil War had officially ended in April of 1865 when General Robert E. Lee surrendered to General Ulysses S. Grant at Appomattox, VA. The rest of 1865 until 1877 were known as the period of Reconstruction, during which former Confederate States were under Union Army occupation until new state legislatures could be elected. The 13th Amendment to the U.S. Constitution formally ended slavery throughout America and the 14th Amendment to the US Constitution (both ratified in 1865) granted voting rights and citizenship to former slaves. Radical Republicans in the US Senate and House of Representatives were determined to "punish" the former Confederacy and "denied citizenship" to any White male who had supported the Confederacy during the War Between the States. Much of the South was in ruin, as most of the fighting has taken place on Southern soil. Confederate money was "worthless" and many people were "broke". This was a "terrible time" for White people!
The Ku Klux Klan started as a "social and fraternal" group. Members dressed up in hoods and robes made of bed sheets, riding at night on horseback to "scare" local folks, especially freed slaves. Slaves thought of them as "Ghosts" of Confederate War dead. By 1866, former Confederate leaders thought of the Ku Klux Klan as a "useful" political tool to help the White South regain political power. In a short amount of time the KKK spread throughout the eleven former Confederate States. Membership was kept "secret", as Union Army would "hang" without a "fair trial" any White suspected of being a Klansman. The first convention of the Ku Klux Klan was held at Nashville, Tennessee in May of 1867. The Klan was so "successful" at reestablishing White rule to the South that several Federal Laws were passed against it.
1865 Alien & Sedition Act
1870 & 1871 Two Ku Klux Acts
1868 The State of Tennessee passed a 
separate Anti-Ku Klux Statute.
By about 1872 most Southern States were electing White Legislatures, so the Ku Klux Klan was formally "abolished" about 1874. Reconstruction ended with the presidential election of 1876 when Rutherford B. Hayes was elected US President over Samuel B. Tilden and Union troops were removed from the South in 1877.

General Robert E. Lee (1807-1870) was originally asked to head the KKK, but declined due to health reasons. General Nathan Bedford Forrest was then asked and became the GRAND WIZARD of the KU KLUX KLAN in 1866. It was he who formally abolished it about the year 1874.
Imperial Wizards / 5 eras
1st Era - 1866 to approximately 1874
General Nathan Bedford Forrest
Title of "Grand Wizard"
Nathan Bedford Forrest 
Born July 13, 1821 Chapel Hill, Tennessee
Died October 29, 1877 near Memphis, Tennessee
Nickname "The Wizard of the Saddle"
Confederate General in charge of "Forrest's Cavalry"
In 1907 Thomas Dixon (1/11/1864 - 4/3/1946), a native of North Carolina published a book entitled, THE CLANSMEN pertaining to the KKK of the Reconstruction Era; he also published two other novels pertaining to the KKK (THE LEOPARD'S SPOTS and THE TRAITOR). These three books are now published together as one book entitled THE RECONSTRUCTION TRILOGY by the Noontide Press (preface by Sam Dickson). 
In 1915 D.W. Griffith, a Kentuckian, produced his silent movie classic, BIRTH OF A NATION pertaining to the Civil War and Reconstruction Era. He "glorified" the KKK.
2nd Era - 1915 to approximately 1925
Colonel William Joseph Simmons
Title of "Imperial Wizard"
Col. Simmons formed a "New Klan" on Thanksgiving Eve in November 1915 at Stone Mountian, Georgia. This Klan was opened to White Men in the 48 United States with ancestry going back to the Revolutionary War or before. This Era of the Klan was founded on concepts of Americanism, meaning Christianity and Patriotism. There were between 4 to 5 million members by 1925. Special "Ladies Auxillary" was formed, as the KKK itself was a White male social and fraternal organization.
In August of 1925, 40 thousand Klansmen marched down Pennsylvania Avenue in Washington, DC. Many Americans were members from all social and economic classes, including politicians and US Presidents. It's believed that five US Presidents were Klansmen. These include: Woodrow Wilson, Warren G. Harding, Calvin Coolidge, Herbert Hoover, and Franklin D. Roosevelt. Even though Roosevelt was a "Liberal" New Yorker, he supported Segregation in the South for political reasons.
3rd Era - Late 1920's to mid 1930's
Dr. Samuel Green
Title of "Imperial Wizard"
Late 1920's saw a dramatic decline in Klan membership due to several publicized scandals, especially in Indiana. David C. Stephenson was convicted of 2nd degree murder in Indiana. The Great Depression of 1929 and the hard years of 1930 to 1933 also caused membership to fall.
4th Era - Late 1930's to approximately 1945
Hiram Wesley Evans
Title of "Imperial Wizard"
The KKK was investigated during the 1920's and early 1930's by the US Congress. Eventually the National Office of the KKK was "closed down" in the early 1940's and assets sold off to pay "owed income taxes". During this period a number of states passed "Mask Laws" against public Klan activities. During the 1930's some members of the KKK formed an "alliance of sorts" with the German-American Bund (an American National Socialist organization). Klan membership declined due to the closing of the National Office and the fact that many White men served in the US Armed Forces during World War II.
After WWII, President Harry S. Truman issued an Executive Order "integrating" the US Armed Forces. Before this, Whites and niggers were "segregated" in US Armed Forces. The 1950's and 1960's were referred to as the years of the "Civil Rights Movement for niggers in the Old South". The Z.O.G. (Zionist Occupation Government) in Washington, DC. passed laws which were upheld by the "jew infested" US Supreme Court against Southern Whites, in favor of niggers.
Segregation (meaning racial separation between Whites and niggers) was always the "Law" in an area where slavery was legal. After the end of the Civil War when the 13th and 14th Amendments to the US Constitution freed slaves granting them citizenship and voting rights, Southern Whites were
"determined" to regain economic and political control. The KKK was the "leading" group that accomplished this. Therefore in the 1950's and 1960's, a number of "smaller", state-wide Klans sprang up in the "Old South" determined to "maintain the status quo of Racial Segregation".
In 1896, the US Supreme Court ruled in Plessy vs. Ferguson that "separate, but equal" policy regarding the races was "legal".
Some of these later Klan groups were headed by an Imperial Wizard, but most were small, headed by a Grand Dragon. One of the best known was Robert Shelton who headed the Mississippi White Knights of the KKK.
"Desegregation" and "special privileges" for niggers, gooks, muds and faggots became the "Law of the Land". The Klan was "infiltrated" by FBI informants and a number of Klansmen were arrested, tried in federal court, found guilty of "Hate Crimes and Civil Rights Violations" and were imprisoned. Morris Dees and his South Poverty Law Center have been effective in "destroying" several White Organizations through "civil lawsuits".
5th Era -1993 TO 2010+

History of the National Knights
The History of the National Knights of the Ku Klux Klan dates back to Stone Mountain where the Klan got it's second birth around 1915. This is the very beginning of the National Knights, as well. James R. Venable  Sr., (the Ty Cobb of the Klan) founded the National Knights of the Ku Klux Klan. The National Knights held some of the largest Klan Rallies of modern times at the base of Stone Mountain which was owned by James Venable’s family. Imperial Wizard James Venable eventually sold the land to the state of Georgia for one million dollars. In 1993 James Venable gave the keys to the P.O. box and the reigns to now Imperial Wizard Ray Larsen. The National Knights are also now an incorporated church inIndiana.
The National Knights made a show of strength on March 26, 1960, by a coordinated series of cross-lightings. Newspapers in the South reported that more than 1000 fiery crosses were seen that day throughout Alabama, Florida, Georgia, South Carolina, Indiana, Tennessee and other states.
 Today The Indiana based National Knights of the Ku Klux Klan is recognized as having the largest  membership, and has Klaverns, rallies and events all over the United States under the leadership of International Imperial Wizard, Ray Larsen.  Under His leadership, I.W. Ray Larsen, has taken the National Knights into 34 States and 24 different countries.