I think I see now. So the 4 branches you must be from in order to be called Kajukenbo?
Since those are the only accepted (by Sijo) branches, then yes. Of course within these branches are various "methods", such as the "Ramos Method", and "Gaylord Method".
What is on the "Kajukenbo Family Tree" is all persons/systems who can trace their roots to Sijo Emperado.
It is the nature of the martial arts for some groups to evolve into distinct and separate arts. This has happened through out the history of martial arts.
A few major examples would be "judo", "shotokan", "aikido", "wado ryu", and many versions of "kenpo". "Judo" evolved from "jujitsu", but judo practitioners do not consider themselves "jujitsu" practitioners. "Shotokan" evolved from "shorin ryu" and "shorei ryu", but shotokan stylists do not consider themselves to be shorin ryu or shorei ryus stylists. And it is this way with just about all arts that have evolved into separate arts.
There are many arts represented on the Kajukenbo Family tree that are now separate and distinct arts. Arts such as CHA-3 kenpo, Nick Cerio's kenpo, Shaolin Kenpo, Karazenpo Goshin Jutsu, Ken-Ka Kung Fu, and many others do not consider themselves to be Kajukenbo or branches of Kajukenbo.
Martial artist are big on history and lineages. Many that are not "Kajukenbo", use the Kajukenbo Family tree to historically trace the roots and development of their present art.