There was plenty of subtle racism in the South, in fact when my parents moved from Buffalo to Spartanburg, SC they were the only white folks in the hall. The congregations were segregated to avoid upsetting the community. When they integrated many did not want to go and there are still to this day many predominate 'black' halls and 'White' halls.
Many gatherings were like this especially in the families. Most folks up north who moved south were not like this and treated everyone the same. I noticed a lot of what I will call reverse racism where there was hidden animosity towards many in the hall. Just my 2 cents/pence...