"Lady Sings the Blues" was written by William Dufty, "as told by" Billie Holliday.   He also wrote "Sugar Blues", which is can also be called interesting but not authoritative.

Jazz and it's relatives (blues, etc) existed in a transient, temporary world that wasn't every really acknowledged, let alone documented--Little to nothing is known of many of the greatest musicians--what is known is processed through a folk culture, where a good story is more important than an accurate or complete story--