(1771-1833), Engineer Born in 1771 in Cornwall, Richard Trevithick was a practical engineer who developed high pressure steam engines. In 1800 he built the first of the double-acting stationary engine which was the forerunner of the famous ‘Cornish engines’. Between 1801 and 1803 he built three steam-powered road locomotives. In 1803 he built the first practical railway locomotive, a tram engine for Coalbrookdale. After that he constructed the ‘Pen-y-darren’ locomotive for Samuel Homfray, partner in the ‘Pen-y-darren Tramway’ in south Wales. Although this was not a success due to the quality of the track rather than the locomotive, it was a proof of principle. Trevithick built two more railway locomotives: one in Gateshead in 1805, possibly for the Wylam Waggon Way (which was again let down by the poor quality of the rails), and, in 1808, the ‘Catch me who Can’, for an exhibition in London. He is also important for demonstrating that a smooth wheel running on smooth iron rails was capable of hauling considerable loads. He was involved in the unsuccessful project to drive a tunnel under the Thames from Rotherhithe. In 1816 he left his family and went to South America where he was involved in mining ventures in Peru. These also were ultimately unsuccessful, in part due to the wars of independence, and Trevithick returned, penniless, to England in 1827. Despite the setbacks he experienced, Trevithick’s inventive capacity was undiminished. His last patent was granted in 1832. He went to work for J. Hall in Dartford where he died on 22nd April 1833. He was married to Jane Harvey (1772 – 1868/9), daughter of another Cornish engineer, John Harvey of Hayle Foundry and had six children, Francis and Frederick Henry, who both became engineers, and Richard, John, Ann and Elizabeth.

Andrew Vivian (1759-1842) was a Cornish mechanical engineer, inventor, and mine captain of the famous Dolcoath Mine in Cornwall. Andrew Vivian was born in 1759 at Vellansaundry as the second son of John Vivian and his wife Anne. His younger brother was Henry Vivian. Andrew was the cousin of engineer Richard Trevithick (1771 - 1833), the inventor of high pressure steam engines. In 1790 Andrew Vivian was in business of supplying candles, leather and other mining requirements. In 1795 he became the manager of Stray Park Mine near Camborne. He persuaded the shareholders of Dolcoath Mine to re-open the mine in 1798 with Richard Trevithick. In 1801 Richard Trevithick completed his first full-sized road locomotive in Camborne, demonstrating it to the public on Christmas Eve with Vivian at the controls. In March 1802 Vivian financed the production of the first steam carriage and was granted a joint patent for high pressure engines for stationary and locomotive use in partnership with his cousin Richard Trevithick. A second locomotive was tried in Camborne and at the beginning of 1803 in London. In May 1805 Vivian sold his patent. He retired in 1806 from Dolcoath Mine and by 1811 he was the manager of Wheal Abraham mine. Vivian had at least two sons, who died in 1805 and 1809. Andrew Vivian died in 1842.