Please never use special characters in category names, only commas, parenthesis, or a regular hyphen. If you need a number sign, please use "No" or "Nr" instead or the pound sign.
Ok, that said, let's see what we have. I looked at Find A Grave for a photo of any signage and there is nothing but a description there. The Hale Collection number is probably not necessary, but it does get used, as in this:York Cemetery, North Stonington, Connecticut There are a number of cemetery categories in the New London County category named with the Hale collection number, so perhaps that is preferred.
This cemetery would be [[Category:Industrial Cemetery 18, Stonington, Connecticut]] with the parent categories of [[Category:New London County, Connecticut, Cemeteries]] and [[Category:Stonington, Connecticut]]. Put the aka somewhere in the category description so people will notice.
You should add that brief description, so anyone looking for it will know it's the right cemetery. Your description is brief, which is perfect.
You could also PM Elizabeth Winter who is the lead for Connecticut in the US cemetery project and ask for her advice. (https://www.wikitree.com/wiki/Winter-1935)