Edward John Dent  Edward John Dent (1790–1853) was a famous English watchmaker noted for his highly accurate clocks and marine chronometers. He founded the Dent company. Edward John Dent, son of John and Elizabeth Dent, was born in London on 19 August 1790. He was baptised on 18 October 1790, at St. Clement Danes Church in the Strand. Edward had a younger brother, William (born 11 February 1792). The boys' mother, Elizabeth, died while they were still young – she was buried on 16 May 1793. At the age of 14, Dent became apprenticed to his grandfather, John Wright Dent, a tallow chandler. Under the terms of the indenture – dated 20 August 1804 – John Wright Dent was expected to find suitable lodgings for his apprentice. Fortunately, Edward John Dent's cousin, Richard Rippon, was willing to have him. Rippon was an expert watchmaker and Dent became fascinated by watchmaking and less interested in the business of making and selling candles. Indeed, Dent became so interested in the watchmaking craft that, on 13 February 1807, his grandfather agreed to transfer the remaining years of the seven-year apprenticeship as a tallow chandler to Edward Gaudin, Watchmaker. In 1814, when Dent was just 24 years old, he was becoming well known as a watchmaker and clockmaker of some distinction: in this year he supplied a Standard Astronomical Clock for the Admiralty, and at least one pocket chronometer for the Colonial Office African Expedition. As early as 1814, Dent was making clocks and chronometers on his own account, but not in sufficient quantities to earn him a satisfactory livelihood. During 1815–29, it is believed that Dent worked for a number of well known firms. One such firm was Callum Brothers of Castle Street, Long Acre. It is almost certain Richard Rippon had worked for them, and had introduced Dent to the firm. In 1826 Dent submitted two chronometers, Nos. 54 and 55, for trial at Greenwich. This must indicate that he had made at least 55 chronometers by 1826. His submitting chronometers for trial brought him to the notice of the authorities at Royal Observatory, Greenwich. Indeed, in 1828 Dent was employed by Royal Observatory, Greenwich to examine and repair chronometers. His charges for repairing chronometers were as high as 25 guineas – an apparently exorbitant cost, but one that was nevertheless accepted.