Here's a simple retcon for you - While the MOVIE of Peter Pan wasn't made until 1953, that isn't to say that Tinkerbell wasn't living in Toontown prior to that, looking for work. Just a small town girl trying to make it big. Betty Boop was seen waiting tables, so who's to say Tinkerbell didn't have a similar kind of day job while looking for her big break?
That really wasn't a timeline thing IMO. It was more like a huge party trying to mention every single somewhat well known Cartoon Character into 1 scene.
i don't think the end was ment to match the timeline there..it was just to close it using the warner brothers and disney closers.
Here's a simple retcon for you - While the MOVIE of Peter Pan wasn't made until 1953, that isn't to say that Tinkerbell wasn't living in Toontown prior to that, looking for work. Just a small town girl trying to make it big. Betty Boop was seen waiting tables, so who's to say Tinkerbell didn't have a similar kind of day job while looking for her big break?