Quest4Treasure

So I have been a lurker for years now. Way before all the EU people got involved. I just don't like to post. I mostly read and take everything in. After seeing the Boston solve though I have to ask a question. Has anyone ever stated and have I missed it over the years that I have been lurking that the 3 found casques have all been found in parks/areas relative to the immigrants related to the stone? For instance, Cleveland was found in the GREEK cultural gardens and the immigrants were Greek, Boston was found in an ITALIAN area, in an Italian park, again the immigrants were Italian. Last, Chicago was found in Grant Park and Ulysses S. Grant was of Scottish/Irish heritage and again the immigrants for this stone were supposedly Scottish/Irish. If this has been mentioned before, I'm sorry I missed it. I just thought that it is way more than a coincidence for all 3 to be found in basically a park named for the specific ethnicity or a person of that ethnicity and maybe we should look into the same for the others.