Kentucky case -- that's Bliss v. Commonwealth, 12 Ky. 90, 92 (1822). Under a previous constitution (the state's second), the Court of Appeals (then the state's highest) struck down a statute that prohibited concealed carry while still allowing open carry. The state's third constitution of 1850 retained the right to bear arms subject to the right of the legislature to ban or regulate concealed carry (which is still the same in the current constitution).
While Kentucky was a slave state, there is no indication that the prohibition struck down in 1822 was racially motivated. You're mostly thinking of laws passed in some states post-Civil War. In Kentucky, concealed carry was thought to be cowardly. It may have also contributed to the proliferation of dueling, a historical problem in the state. To this day, the constitutional oath of office includes affirmation that one has not fought a duel nor been a second in one.
I'll just conclude that the state constitutional protections, which the courts enforced in 1822, are part of what makes this a gun friendly state.