Backgrounds in 19th century style?

Hello, I’m new here. I have no idea how it works, but…
I’m writing a story about 19th century and I would like to find more backgrounds of interior rooms like bedrooms,
living rooms,
dining rooms with candles , wine glasses and food
and overlays for them of course.
So may be there are any resources side or something?

And one more question… If I find a background in photo editor is it allowed to use them without any problems?

Thank you for your time!