Certified CAC here (I guess?), grew up on old school country music.
Merle Haggard - Twinkle Twinkle Lucky Star. Lots of sort-of-jazzy instrumental solos that you wouldn't stereotype as country
Glen Campbell - Still Within the Sound of My Voice
And the original country music black man, Charley Pride - Kiss an Angel Good Morning
Fun fact about him, his first two records were released in the late 60s with no pictures of him. No one knew he was black and he sounded like a white guy and he surprised the dogshyt out of the first few thousand people who came to his shows.