I know how to make additions to Wikipedia pages, but
https://en.wikipedia.org/wiki/Amelia_Earhart appears to be a special one, warning: "This page is currently semi-protected and can be edited only by established registered users". Since I am a registered user and actually still made a bunch of corrections during the elapsed week, I do not really understand why I am not allowed to edit the page (maybe corrections in French-speaking Wikipédia do not qualify for corrections in English-speaking pages) ... The trouble is not that severe (except for the fact that a TIGHAR link would not be the least appropriate in the list, considering the external links already posted), the "Gardner island hypothesis" actually has a complete chapter, probably duly updated by TIGHAR members, and the link is conspicuous there.
On the other hand, the Amelia Earhart entry in French-speaking Wikipédia is not protected at all, and there is plenty of work to do there. Just think that, up to yesterday, Amelia's lost plane was a model 12, not a 10E ... Of course one of the first addition I made to the page was the TIGHAR link, in the list of "Liens externes".
Best wishes to Niku VIII !
Christophe