There are 4 titles associated with this firm.

du Crest de Saint-Aubin, Stéphanie F. Petrarch and Laura. By Madame de Genlis. Translated from the French. London: Henry Colburn [Conduit Street], 1820.
Sedgwick, Catharine M. Clarence: A Tale of Our Own Times. In Three Volumes. London: Henry Colburn and Richard Bentley, 1830.
Talon, Zoé V. Private Memoirs of the Court of Louis XVIII, By A Lady. London: Henry Colburn and Richard Bentley, 1830.