Donna, apologies for note replying sooner - I thought I would get an e-mail alert if there were any responses to me enquiry, and only happened to look at the website today.
The only information I have about Anne Jane Cain(e)'s mother, Ann Caine, is that she appears in the 1901 census at her daughter's address in Ballagarrow, Lezayre, IoM. Her age is given as 56, and her profession/occupation: cook domestic. The census says she was born in Bride, IoM.
There was a visitor also present (this information may or may not be relevant to your searches): Ellen Skinner, aged 64, occupation Laundress, Born Michael, IoM.