in general wikipedia articles should be titled with the most standard name for something in use in publications for general readers or arguably in scientific publications not what is or an editor decides is the most logical modern politically correct etc in all cases any variants of a name term in use should be given as alternates in the article text if they are very common alternates they should be given immediately after the most standard form at the start of the article if less common alternates they can be mentioned somewhere later in the intro or in an etymology section muscogee is probably the traditional english spelling i'm finding both the oxford american english dictionary and ethnologue use muskogee what was the article titled previously we don't even know from the current text