So far as lines, if a person got their starting birds from Joe Blow, that doesn't mean to me that it's Joe Blow's line unless I get the actual birds from that person. Once bred, the chicks are from the person I got them from. Often I've read how easy it is to mess up a line, that the trick is to keep that line good or improve it. Mine are from someone that got birds from more than one source to start, therefore I don't say they're from any other breeder but the one I got them from. In other words, the one that took those sometimes celebrated lines and combined them to get really great results.
Name dropping can be deadly. It can give breeders a black eye if you use their name in association with birds that might not really be up to that breeder's standards.