Do you know of Principia ???This page is an orphan - a placeholder until we can discover more about Principia. When we encounter a name that is new to us, we add it to our Gazetteer with the hope that we'll discover more information in the future. Such is the case with Principia.<1> Unfortunately, we didn't note our source when we found mention of Principia, so we are uncertain whether Principia is a community, a post office or a post office located in a community and having the same name.<2> While we don't have its location, we believe that Principia would be found somewhere in Saint Louis County, Missouri. More Orphans in Saint Louis County ...Can you help? As we explained above, when we encounter a name that might be a community or a post office we add it to our Gazetteer. If we have little information to go with the name, we call them Orphans. Below are Orphans that we believe to be located in Saint Louis County. Footnotes ...
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