Is the 1855 Choctaw Census online? In 1855, there wasn't yet a "Chickasaw Nation". Cochran's on Boggy Creek would have been in the Chickasaw District though. Was there a particular purpose of the 1855 Census such as removal claims or distribution of annuities?
I'd like to know more about Jinny Bohannon. It could tell us more about the Cochrans on Boggy Creek.