Derek Roberts, English Precision Pendulum Clocks, Schiffer, 2003, pp.118-121.
A pupil of Thomas Earnshaw, Robert Molyneux set up in business on his own circa 1800, first as an escapement maker and then as a chronometer maker. In 1805 he was asked to judge Arnold's and Earnshaw's inventions. In 1832 Molyneux gained top prize of £200 at the Premium Trials established by the Board of Longitude to encourage makers to introduce improvements to chronometers. That year he moved to 30 Southampton Row, having been joined in business by his sons some two years earlier. Although the major part of his business involved the manufacture of chronometers and watches, Molyneux also advertised as an Astronomical Clockmaker (that is, a maker of regulators). Examples of these may be found in the Cambridge Observatory, the Royal Scottish Museum and the National Maritime Museum. See Roberts, op.cit.