On a character page what publisher should be used?

On a character page what publisher should be used? I am referring to characters who have been produced by multiple publishers.  Take Blue Beetle for example.  He was originally produced by Fox Comics later by Charlton Comics and lastly DC Comics.  Those are the main three publishers but there were more.  When you look at the Charlton Page you will see Charlton's top characters listed and yet none of Charlton's top heroes are really in the list.  This is because DC Comics bought Charlton's top Heroes and whoever posted the character pages listed the publisher as DC Comics.  This can also be said for publisher's like Red Circle Comics or any of the many publisher's produced by DC Comics.  It is also a problem with public domain characters.  They have been written about in so many different publications that they run the gambit.  I have seen some characters list In the Public Domain as their as their publisher.  i don't think that is helpful at all.
The reason I find this to be a problem is because of the history of comics.  I am fascinated by the history of comics and how they evolved with time.  When I look at publisher like Charlton, Fox, Red Circle and all the other golden aged publisher's I miss how important or unimportant they were to the comic world.  The best solution in my opinion would be to be able to list multiple publishes on the character page.  For now wouldn't it be better to list the original publisher as a general rule?