As I understand the issue, the argument is not about whether Twain named Jim "Nigger Jim" but whether he referred to him as "nigger Jim."  My reference in the bio is to "nigger Jim." And the question is whether or not that is an accurate quotation. The Mac Donnell & the Fisher claim seems to be that Twain never referred to Jim as "nigger Jim." Clearly he did. Am I wrong about this?