One enterprise was the publication of a translation of Georges Cuvier's Animal Kingdom, in sixteen volumes, with many coloured plates.
He published for Frances Trollope, Colley Grattan, George Croly, and Mary Russell Mitford.
He published educational primers, including the Pinnock Catechisms series, and many other children's books, and he was a promoter of literacy with his Whittaker's Popular Library (Popular Library of Modern Authors).
Whittaker published using a number of imprints:[4] He died at Kensington on 13 December 1847.
The firm was incorporated as Gilbert and Rivington Ltd. in 1881, was still operating in the early twentieth century until it dissolved some time before 1916.