It's equally frustrating when you find many, MANY references on the internet and they all say exactly the same thing. There are all those different articles and authors and it is clear that they aren't merely parroting what they've read somewhere, but they are literally cutting and pasting it! Ironically, it was a bunch of search results like that which first brought me to this forum. I was looking for some information with attributed sources for the Missouri guerrilla scout, John Noland (a black man). I probably found six or more articles about him and they all said exactly the same thing...and I mean EXACTLY the same thing. After reading the third article, I knew I was reading "hearsay" (no one gave source material) and as I kept finding the same short quote again and again, I knew the authors were cutting and pasting. Yet, they all seemed to have accepted their cut and paste passage as good enough to post on the internet. If those authors all accepted the material as genuine and repeated it without question, what are we to think of material we find on the internet? All I wanted to know was the source of the material. There wasn't even a way to find out who wrote it first. Some internet info is good (you can at least run those down when sources are given) and some of it is just...well...not possible to verify. Very frustrating!
By the way, to illustrate my point, I'll paraphrase what I kept finding about John Noland a year ago: Freed former slave...then joined Quantrill because of "abuses" committed against his family by Kansas jayhawkers, etc. etc. etc. But no attribution for the source of this information ever offered. Another thing I kept finding about him: "Most of what we know about John Noland comes from John McCorckle." I probably came across that four or five times, too. Well, let me assure you that McCorckle only mentions Noland once in his memoir. The writers who assured me that most of what we know about Noland came from McCorckle clearly never read McCorckle. They were parroting!
My rant aside, some internet information is very useful and very easy to spot (sources and attributions, etc.) and some of it is tantalizingly worthless...