There are over 30 added there and more will follow, but I won't add any current stars who might still have a chance to play in future World Cups. I would say that Romario, Franco Baresi, Gabriel Batistuta and Paolo Maldini are the ones closest of getting in. Then there are a few from the past that might be added. Videos, yearbooks, many different books about the World Cup and also from other places on the net. The statistics and matchfacts on this site are carefully checked.
Nothing here is based on just one source.
All this to get as accurate and correct as possible. I chose not to put it on the site. The others I have only heard on radio many years ago. First in 1966 at an excebition in London prior to the World Cup. Thankfully it was found by a dog named Pickles under some bushes outside London just in time for the World Cup started.