Hogarth's painting, The Graham Children (1742). Malthus was born at The Rookery, a "small elegant mansion" at Westcott, near Dorking in Surrey, which his father had bought- at that time called Chert-gate farm- and converted into "a gentleman's seat"; the family sold it in 1768 and moved to "a less extensive establishment at Albury, not far from Guildford". Malthus had a cleft lip and palate which affected his speech; such birth defects had occurred in previous generations of his family. His friend, the social theorist Harriet Martineau, who was hard of hearing, nevertheless stated that due to his sonorous voice he was the only person she could hear well without her ear trumpet. William Petersen and John Maynard Keynes describe Daniel Malthus as "a gentleman of good family and independent means [...] [and] a friend of David Hume and Jean-Jacques Rousseau". Daniel Malthus was son of Sydenham Malthus, who was a clerk of Chancery and director of the South Sea Company; he was also "proprietor of several landed properties in the Home Counties and Cambridgeshire". Sydenham Malthus's father, Daniel, had been apothecary to King William and later to Queen Anne; Daniel's father, Rev. Robert Malthus, was appointed vicar of Northolt, Middlesex (now West London) under the regicide Cromwell, but "evicted at the Restoration"; he was described as "an ancient divine, a man of strong reason, and mighty in the Scriptures, of great eloquence and fervour, though defective in elocution", due to "a very great impediment in his utterance" which has been concluded to be likely to have been a cleft palate. The young Malthus received his education at the Warrington Academy from 1782, where he was taught by Gilbert Wakefield. Warrington was a dissenting academy, which closed in 1783. Malthus continued for a period to be tutored by Wakefield at the latter's home in Bramcote, Nottinghamshire. Malthus entered Jesus College, Cambridge, in 1784. While there, he took prizes in English declamation, Latin and Greek, and graduated with honours, Ninth Wrangler in mathematics. His tutor was William Frend. He took the MA degree in 1791, and was elected a Fellow of Jesus College two years later. In 1789, he took orders in the Church of England, and became a curate at Oakwood Chapel (also Okewood) in the parish of Wotton, Surrey. Population growth Malthus came to prominence for his 1798 publication, An Essay on the Principle of Population. He wrote the