There's several things I could suggest, but a better answer might come by talking to your town librarians. Info mapping, cataloging, data classification, storage and retrieval are their specialty. And they're also probably the most underutilized talent pool in the country.
If the early creators of the web involved professional librarians up front, things would probably be far less chaotic than they are today.
If you're in a small town whose library is primarily staffed by well-intentioned volunteers, you may need to head over to the next larger municipality (or college) to find someone with a LibSci degree who can help you.
I've involved librarians on several volunteer and paid projects I've worked on. Maybe I'm just lucky, but I found all
of them to be extremely knowledgeable and helpful.
Pretty cool people too! So much for the stereotype...
And their expertise isn't restricted to books. I found one expert in government publications, and another who knew video formats and conversion methodologies inside out. She's the first person that ever explained what a codec
does in a way that made sense to me.
I also wound up acquiring some new personal friends in the process. Apparently info-squirrel/book-lover types bond very quickly.
I suggest you pay them a call.