Hello

Hoping some of you can help me.
I'm currently writing a follow-on book (historical/fantasy fiction). Book one was about solving a certain historical mystery in the modern day, and it involved a lot of looking back at the antics of real people from around five hundred years in the past. Because the characters lived so long ago I was able to pretend certain things happened to them that most likely didn't, but I still had to be very careful about historical accuracy.
The problem I'm having is that the characters in book one were well-known historical figures. For book two I plan to look at a different historical mystery that occurred more recently (Victorian England). This mystery doesn't have any specific people involved in it - it was a peculiar phenomenon that happened in a country village and was witnessed by unnamed villagers.
When I first set about writing book two I invented some fictional characters for me to play with who could have lived in this country village, but then I realised that because I'm writing about real events and putting a slightly fictional twist on them, I have to make sure that when it comes to the details that people can actually go and look up I need to be accurate.
Basically, two questions:
1. Can I just invent some characters and place them within an established historical event? A reader might go and look at parish records or something hoping to find out more about the people I've written about, only to find that they don't exist like they did in book one.
2. If I do have to use real people, is it ok for me to just look at some old records and pick a few individuals who lived in that village and were of the right gender, age and occupation? The people I pick could be a living person's not-so-ancient ancestors; could this cause problems?
It's tricky because in book one I had all the characters pre-selected and was very restricted about how much fiction I could apply to the story. This time I have almost no pre-selected characters to work with and because very little is known about this particular mystery I'm going to be applying a lot of fiction to it so I need my characters to fit the story I'm hoping to write. Real people from the time might not fit.
Just in case that makes no sense, here's an example. To fit with the fictional storyline I'm applying to this historical mystery, I need my characters to have been farmers living within a certain area who were friends with an inventor. This might not work if I have to find real people, because there might not have been any farmers or inventors living in that place at that time.
So frustrating!!
