Hi AmyUK
Just found your post. I am a direct descendant of Sarah Clover's parents - James CLOVER & Sarah WILSON.
Between 1860 and 1876 there is only one BILNER baptism in St.Micheal, Ramsey (as far as I have found)
29 July 1867 Mary dtr of Charles & Sarah BILNER - Labourer - Ramsey
GRO has birth as BILLNER mother's maiden name CLOVER in Tendring District
GRO also has another Mary BILLNER 1866 mother's maiden name CLOVER in Tendring District
I've not followed the BILNER line much, but have some info if you are still looking.