John Hartwell Cocke's son, Brig. Gen. Phillip St. George Cocke, married Sarah Elizabeth Courtney Bowdoin, a descendant of Jane Meriwether and William Browne (FG M14). The link below is to an interesting research thesis on the effect of slavery on one anti-slavery slaveholder.
Links to the TMSI Research Database:
Phillip & Sarah (Bowdoin) Cocke
Jane Meriwether & William Browne