the wikilink for the relevant article about the indigenous people; and
the displayed name for the people.
It is a little messy and only supports a link to one article for each switch. In some cases you are duplicating the information in each switch, but it all depends on the level of specificity desired for the location and the article name for the people. A magicword is used to indicate the editor's preferred pronoun (he/she/they). For example:
{{User:Tcr25/Userbox/User land acknowledgement|Washington, D.C.|Washington, D.C.|Nacotchtank|Nacotchtank}}
{{User:Tcr25/Userbox/User land acknowledgement|Illinois|Southern Illinois|Miami people|Myaamia}}
{{User:Tcr25/Userbox/User land acknowledgement|Halifax, Nova Scotia|Halifax|Miꞌkmaq|Miꞌkmaq}}
{{User:Tcr25/Userbox/User land acknowledgement|Osborne Park, Western Australia|Osborne Park|Whadjuk|Whadjuk}}
{{User:Tcr25/Userbox/User land acknowledgement|Pennsylvania|Northwestern Pennsylvania|Osage Nation|Osage}}