Mainwaring Otley Park

A Memory of Ellesmere.

Can anyone help me to find something out please?
My grandfather was the son of Lydia Drury and her mother was a female from Otley Park by the name of Mainwaring, nobody is sure of her first name as we do know that Ms Mainwaring was thrown out of Otley for conceiving a child out of wedlock to a local builder by the name of Drury. I would like to shed some more light on this as my grandfather is no longer here to ask questions of him. He has 2 sisters by the names of Lottie and ? , pretty sketchy detail really but I would love to find out more.
Thanks!