What to do with discarded research data?

Some time ago, I was looking for anything related to the birth, or the family, of a lady who married into my line back in 1834. All I could see was one baptism that looked a good match some 30-or-so miles away. Hence, I had to research her and follow it through until I knew whether it was the same person or a different one.

This took me several months but I amassed a great deal about her family, including many newspaper reports, law information, wills, and BMD certificates.

Unfortunately, I finally came across that one piece of evidence that proved it was a different lady with the same name and date of birth.

However, I'm now left with a lot of data that isn't directly related to my own family but which I'm loath to simply throw away. I'm wondering what options there are to pass it on or publish it. Sure, I could upload the lineage parts into some online tree but that's not so easy with all the documentation and the reasoning.