I doubt the Klan was the nations biggest lync her
More likely vigilantes
One reads about how violent criminals were dealt with by locals in 1600s thru early 1800s in developing America and territories
I live near the Natchez Trace
Lynching and beheadings with severed heads on pikes as warning to other bandits was common
( see Harpe brothers)
There were really three Klan incarcerations
The first was southern to combat Reconstruction and was successful could be argued
Second a nationwide group more centered in the Midwest and was violent at times yet had public membership and marched openly in DC
Third was the Klan if Sam Bowers and Californian Byron de la Beckwith that terrorized the freedom riders and other opposition in the 50s and 60 and was mostly southern and could be quite violent
Just for info
But I gaurantee most lyncings in USA historically were not Klan
It was frontier justice citizenry ....the vast majority
Now we’re whipped
Remember, Abraham Lincoln was responsible for the largest mass hanging in US history.