Hi
Is this any help?
From the Evershot registers
15 Jul 1843, Elizabeth do John and Mary Ann GROVES, Labourer
is the closest, there is also another born the year before...
30 Jan 1842, Elizabeth illegitimate do Mary Ann GROVES
There don't seem to be any more baptisms for children of John and Mary Ann but plenty either side for John & Maria, I suspect Mary Ann & Maria are one and the same.
Jen