found
:
New Columbia ency., 1975
p. 1505 (Ku Klux Klan; two distinct secret societies; first society org. at Pulaski, Tenn., in May 1866 and disbanded in 1869; second Ku Klux Klan founded in 1915 by William J. Simmons)
found
:
Imperial nighthawk (Stone Mountain, Ga.). Imperial nighthawk, vol. 68, no. 4 (1968), surrogate:
p. 1, etc. (K.K.K.K.; K.K.K.; KKK; Knights of the Ku Klux Klan; National Knights of the Ku Klux Klan Association of America; National Knights of the K.K.K.)
found
:
Britannica online, Dec. 13, 2006
(Ku Klux Klan; either of two distinct secret terrorist organizations in the United States, one founded immediately after the Civil War and lasting until the 1870s, the other beginning in 1915 and continuing to the present)
found
:
Race and intergration, scientists speak out, 1972:
p. 4 (Invisible Empire)
found
:
Wikipedia, Oct. 4, 2010:
Invisible Empire disambiguation page (refers to the Ku Klux Klan The Invisible Empire: The Ku Klux Klan in Florida by Michael Newton)