While Forrest was the first Grand Wizard, he did not organize the Klan. It is also my understanding that he disbanded the Klan in 1869. (I will have to look that up.) While he may have "officially" disbanded it, I have no doubt that some activities continued.

Forrest accepted the position of Grand Wizard after Robert E. Lee turned it down on account of old age and poor health.

The Klan we know today was revived sometime in the 1920s. During that time its largest membership was in - get ready - INDIANA. Not a Confederate state, last time I checked. Several years ago one of the TV networks did an intriguing movie about Douglas Stephens, Klan Wizard and Indiana resident. Not a very nice man.