Louisa was the youngest daughter of Francis Hawkins and she married Anthony Adrian, 7th Earl of Kintore as his second wife on 27 August 1821. She obtained a divorce from the Earl and married secondly on 2 April 1846 B. North Arnold, the son of the Rev. C. Arnold, of Mellor and Langho, Lancashire. From her marriage to the Earl there were three sons, the eldest of whom, William Adrian was hilled while hunting, and the second son Francis Alexander, succeeded as 8th Earl of Kintore on the death of his father on 11 July 1844

Faulkner exhibited at the Royal Academy between 1821 and 1859, sending paintings for exhibition from his house in Hatton Garden. Other portraits by him are in the collection of the Royal Society, of the geologist Dr. John McCulloch and the engineer Sir William Fairbairn, and at Manchester.