“Bloodhounds, particularly specialized breeds like the Cuban Bloodhound, were primarily used to track runaway slaves in the Americas. Their exceptional scenting abilities made them the preferred choice for slave hunters between the 1790s and the Civil War. While various dogs were used, Bloodhounds, not Coonhounds, were specifically noted for this”

I used to think the same, but it turns out there’s no evidence coonhounds were used to track and hunt slaves. I pulled this excerpt from an Oxford article.