[4] In London, she joined Margaret Radclyffe Livingstone Eyre and Cecil Chetwynd Kerr, Marchioness of Lothian who, like her, were recent aristocratic converts to Catholicism.

At the time of the 1861 England Census, she, her husband, and eleven servants lived at 27 Chapel St in the fashionable St. George Hanover Square, Mayfair, London.

In 1872, she assisted in the founding of Frances Margaret Taylor's school and religious community Poor Servants of the Mother of God Incarnate in which she served as the benefactor.

Three years later, she moved for the final time with her husband and eight servants to Bournemouth, into their home called Ayrfield, Gervis Road in which she died on 19 January 1885.

Not that many good and glorious things have not been the composition of women – but, because, here, the severe precision of style, the thoroughness, and the luminousness, are points never observable, in even the most admirable of their writings.

"[10] Like most critics, Fraser's Magazine responded approvingly in 1844 to Fullerton's first effort: "To say of Ellen Middleton that it evinces extraordinary talent in the writer, would be to make use of language which is quite inappropriate to the occasion.

"[11] Responding in October 1847 to Fullerton's second novel Grantley Manor, about a Protestant husband and Catholic wife unable to live together openly due to his father's prejudice against Catholicism, the reviewer for The New Monthly Belle Assemblée castigated her for her rejection of Anglicanism in favor of "Romish glories," commenting, "It is all very well, Lady Georgiana Fullerton, to expel the sin of bigotry, and the falsehood of those rampant Calvinists, who teach children that the Pope is the devil without his horns.

We know there are many excellent Christians in that other faith, though it be full of pitfalls...but we do not see either profit or pleasure in the task of illuminating with the pictures of your genius the dull old missal which has been forgotten in England since the glorious Reformation.