Lewis Weston Dillwyn
Lewis Weston Dillwyn, FRS (21 Aug 1778 – 31 Aug 1855) was a British porcelain manufacturer, naturalist and Member of Parliament.
He was born in Walthamstow, Essex, the eldest son of William Dillwyn (1743–1824) and Sarah Dillwyn (née Weston). His father, a Pennsylvanian Quaker had returned to Britain in 1777 during Philadelphia's worst period in the American War of Independence and settled at Higham Lodge, Walthamstow, Essex, UK. William Dillwyn was a vociferous anti-slavery campaigner and toured England and South Wales in his work for the Anti-Slavery Committee. William Dillwyn was related to George Haynes through the Emlen and Physick families in Philadelphia and it is likely that the opportunity to buy the Cambrian Pottery, Swansea, Glamorganshire from George Haynes came about through these family connections in America.
William's letters to his daughter Suzanna are held by the Library Company in Philadelphia and stored at the Historical Society of Pennsylvania. These letters show that the factory was bought by William to keep Lewis active while the latter was suffering from gout. The highlight of this period of production of Swansea Pottery was the opening by Lewis Weston Dillwyn and George Haynes of the Cambrian Company, the Swansea Potteries London Warehouse on Fleet Street which operated between 1806-1807. In 1814 the pottery took over the workforce of the Nantgarw Pottery and began to make porcelain.
Lewis Weston Dillwyn however was also renowned for his published works on botany and conchology, including his work The British Confervae an illustrated study of British freshwater algae, published 1809. Dillwyn is credited with discovering several species of the Conferva genus. Among the botanical illustrators of The British Confervae are the artists William Jackson Hooker, Ellen Hutchins and William Weston Young. He was elected in 1804 as a Fellow of the Royal Society
In 1817 he temporarily retired from the pottery. In 1818 he became High Sheriff of Glamorgan and was elected to the First Reformed Parliament in 1834 as MP for Glamorganshire. He bought Sketty Hall near Swansea and was elected Mayor of Swansea in 1839.  Dillwyn was also one of the founders of the Royal Institution of South Wales and its first President, and in 1840 he published a short history of Swansea.
He married Mary Adams, the daughter of Colonel John Llewelyn of Penllergaer, Llangyfelach in 1807. They had six children, including the noted photographer John Dillwyn Llewelyn (1810–1882) and Lewis Llewelyn Dillwyn, who became MP for Swansea.
He died in Sketty Hall, Swansea, in 1855.
Taxa named by Dillwyn include:
|This article needs additional citations for verification. (March 2009)|
- A.R. Walker, 'The Dillwyns as naturalists: Lewis Weston Dillwyn (1778–1855)', in Minerva (Journal of Swansea History); 11, p. 20-42.
|Parliament of the United Kingdom|
Sir Christopher Cole
|Member of Parliament for Glamorganshire