Nine years after her death, Tolkien wrote:
My own dear mother was a martyr indeed, and it is not to everybody that God grants so easy a way to his great gifts as he did to Hilary and myself, giving us a mother who killed herself with labour and trouble to ensure us keeping the faith.
In 1904, when J. R. R. Tolkien was 12, his mother died of acute diabetes.
Mabel Tolkien was received into the Roman Catholic Church in 1900 despite vehement protests by her Baptist family, which stopped all financial assistance to her.
Before her death, Mabel Tolkien had assigned the guardianship of her sons to her close friend, Father Francis Xavier Morgan of the Birmingham Oratory, who was assigned to bring them up as good Catholics.