One branch of m yfamily lived all over over the years - Maryland, Texas, Pennsylvania, and Georgia. My uncle always said the worst racists he ever met were in rural Pennsylvania. FWIW.
The border regions were traditionally pre-1970 areas of conflict between Republicans and Democrats with the KKK in the picture.
Think Rush Limbaugh’s dad and grandfather in southeastern Missouri the Democrats were the cross burners in those parts and here in York County, PA just over the Maryland line similar conflicts.
In 1924 the Mayor of York City banned the Klan from marching they had to rally outside of town.