I put things back the way I set them, pending discussion.  Please read some of my notes.   I don't accept that just becaues a templete is coded 'hd' that the article automatically  describes an 'historic district'.  The article text needs to show this is an historic district (very doubtful for a single structure, for example) and there should be some reference showing it is an historic district.  What I suspect is that the template (or its content) was just copied from article to article without checking the facts in each case.  Thanks