talk about getting lost - I do with categories all the time. The categories at the top of a page aren't necessarily the hierarchy but they do help people navigate through the maze.
Yesterday I created a new location category: [[Category:Poste de Pointe Coupée]]
I intentionally did not include anything more so that it could be further identified as appropriate (or desired) & included it under several categories so that folks could find it:
La Louisiane, Nouvelle-France | Louisiana | Louisiana Families | Pointe Coupee Parish, Louisiana | New Roads, Louisiana | Louisiana Categories Project | Luisiana, Nueva España
I got completely tangled up in all the various categories for Louisiana (including District & Louisiana Purchase - now strung out across the top of the text for [[Category:Louisiana]]), but settled on recommending using the new category with either the French or Spanish category:
[[Category:Poste de Pointe Coupée]][[Category:La Louisiane, Nouvelle-France]]
during Spanish rule: [[Category:Poste de Pointe Coupée]][[Category:Luisiana, Nueva España]]
Having said all that... I think that maybe a category for Los Isleños should be set up the same way - not identified with either French or Spanish Louisiana, so that profiles for people referred to as Isleños could be categorized in either, as appropriate. But what should their category be?
Los Isleños means the islanders, right? So... Category:Isleños Immigrants to Louisiana - is that ridiculous or logical? would Category:Louisiana Isleños Settlers be better?
Once y'all decide how you want to categorize the group of people you want to group together, post a new G2G for comments about the name itself (along the lines of this post which led to "Louisiana Acadian Coast Settlers" from the original suggestion of Acadian Coast Pioneers).
And thanks for continuing my education :D