Wasn't there like a huge gap in JH sig stuff and his death? I always got the impression someone got ahold of the family much later on then started building the brand in earnest. Quite successfully of course.
Assuming by "JH" you mean Jimi Hendrix and not Jeff Hanneman.
Yeah, Jimi's old man wasn't really into marketing like that. It wasn't until his sister took over that things sort of went off the rails.