Searching for Birch family Pre: 1841

[VICTORIA]

Hi can anyone help me please.

I am searching for any details of Birch family pre: 1841 census ( family minus father in Liverpool at this time )

This is the information I have.

William Birch Occupation  listed as Miller on marriage certificate of daughter ) 1842.
Sarah Birch born approx 1821 Sheffield Yorkshire.
Siblings Joseph Birch born approx 1824 Barnsley Yorkshire.
John Birch born approx 1827 ??

Wife of William was Martha born approx 1796
I believe Marthas` maiden name could have been Ellis.

I have a Martha Ellis age 70 ( born 1761 )
 living with family Liverpool 1841
Could be mother of Martha Birch.

Therefore marriage of;

William Birch & Martha Ellis would be helpful.

Victoria