When the documents on which Humphrys founded his claims were discovered to be forgeries, Banks ceased to make use of the bogus baronetcy; however, in his obituary notice he is nevertheless styled a Baronet of Nova Scotia and Knight of the Holy Order of St. John of Jerusalem.
From 1813 to 1820 he practised at 5 Lyon's Inn, and subsequently ran the Dormant Peerage Office, in John Street, Pall Mall, London.
The same year there was published anonymously the Detection of Infamy, earnestly recommended to the justice and deliberation of the Imperial Parliament by an Unfortunate Nobleman.
[1] In the 1810s Banks was also engaged in compiling the cases printed by Lewis Dymoke on his claim to the barony of Marmion in right of the tenure of the manor of Scrivelsby, Lincoln.
[1] In 1825 he brought out Stemmata Anglicana; or, a Miscellaneous Collection of Genealogy, showing the descent of numerous ancient and baronial families, to which is added an analysis of the law of hereditary dignities, embracing the origin of nobility.
Banks gave proof of his own personal faith in the claims of Humphrys by allowing the pseudo-earl, in accordance with rights conferred on the first Earl of Stirling by King James VI of Scotland, to create him a baronet, and by accepting from him, in anticipation, a grant of 6,000 acres of land in Nova Scotia.
When the documents on which Humphrys founded his claims were discovered to be forgeries, Banks ceased to make use of his own title; but in his obituary notice he is styled a Baronet of Nova Scotia and Knight of the Holy Order of St. John of Jerusalem.
Banks published the imaginary discovery of another unrecognised claim to a peerage, under the title of a Genealogical and Historical Account of the Earldom of Salisbury, showing the descent of the Baron Audley of Heleigh from the William Longespe, Earl of Sabsbury, son of King Henry II by the celebrated Fair Rosamond, and showing also the right of the Baron Audley to the inheritance of the same earldom.