Hi appl3jack,
I know it's a while since you posted this question, so you've probably got more information by now.
However, just in case:
So far as I can tell, Mary Ann's mother was Martha Furnivall from Moreton-cum-Alcumlow, who married Thomas Bennion on 29 Aug 1822 in Astbury.
Their children were;
John, baptised 7 Dec 1822 in Congleton,
George, baptised 26 Feb 1826 in Astbury,
Mary Ann, baptised 21 Feb 1830 in Over (Winsford),
Hannah, baptised 10 July 1836 in Over.
John married Elizabeth Pemberton, 3 Nov 1846 at St Wilfrid's, Davenham.
George married Alice Bromfield, 28 Sep 1846 at St Wilfrid's, Davenham.
Mary Ann married William Senior, 8 Dec 1849 at St Mary's, Great Budworth.
Hannah never married. Mary Ann was widowed and living with Hannah in Chorlton on Medlock (Manchester) in 1891 (RG12/3184/127/15).