One final thought, given your mention of her being in a hospital/asylum and possibly dead by 1909, again, not Wales but Northumberland at 1901:
May Ann
Last name Burns
Relationship Inmate
Marital status Single
Sex Female
Age 50
Birth year 1851
Birth town -
Birth place Scotland
Birth place other as transcribed SCOTLAND
Birth county -
Occupation Jute Spinner
..and look at her occupation in particular.