Publisher and printer. Became manager of the printing business of William Clowes the elder (1779–1847). Appointed superintendent of the Cambridge University Press, 1829. Established his own premises in 1832, and was appointed publisher to the Christian Knowledge Society. Printer to the University of Cambridge, 1836–54. His eldest son, John William Parker (b. 1820), entered the business in 1843 but died in 1860.
(See the bibliography for full references to sources)