Josiah Wedgwood was a member of the Lunar Society.
The Lunar Society was so called because the members would travel by moonlight to their meetings.
The principal Lunar Men in order of age were:
John Whitehurst (1713-1788)
Matthew Boulton (1728-1809)
Josiah Wedgwood (1730-1795)
Erasmus Darwin (1731-1802)
Joseph Priestly (1733-1804)
William Small (1734-1775)
James Keir (1735-1820)
James Watt (1736-1819)
William Withering (1741-1799)
Richard Lovell Edgeworth (1744-1817)
Thomas Day (1748-1789)
Samuel Galton (1753-1832)