Details of extant records on Archives Network Wales for the following;

• Siop y Jones, Llandysul, Records 1823-1862 "Siop y Jones, on the High Street, Llandysul, Cardiganshire, was active during the 19th century..."

Held at the NLW ;

• The Cilgwyn estate papers of the families of Lloyd, Hall and Fitzwilliams include records for the Llandyssul Market Co., 1834-1900.

Jones, J Tysul. J.D. Lewis [1859-1914] a Hanes Gwasg Gomer. Ceredigion : Journal of the Cardiganshire Antiquarian Society, Vol VIII, No 1, 1976

Details of extant records on Archives Network Wales for the following;

• Business Records, Cardiganshire 1558-1995 (accumulated 1975-2001) - various
• Record Office Business Survey Documents "In 1977-1978, Carmarthenshire Record Office carried out a survey of businesses in Carmarthenshire, Cardiganshire and Pembrokeshire, producing synopses of their history and survey lists of their records."

Held at the NLW ;

• Material preserved from salvage collected in campaigns organised by The Cambrian News during the Second World War : includes many tradesmen's and business records, largely of Cardiganshire interests, 1818-1941.

Held at Ceredigion Archives;

• Ledgers and day books of several C19 businesses in the county.

• TNA provide:
  • A very useful  Research Guide: Companies and business
  • Their National Register of Archives (NRA) ("Discovery") is particularly useful for finding the location of the archived records of named organisations
• The Association of Business Historians creates and disseminates knowledge about business history.
• TNA hold some railway company records. (Ancestry provides subscription access to the TNA's railway employment records 1833-1958, from a number of historic railway companies.)
• Some employers' and trade association archives are held by Warwick University's Modern Record Centre.
• Trade directories can provide some information (including advertisements) about businesses, large and small, through the years.
• Railway Work, Life and Death - records of railway worker accidents in Britain between 1911 and 1915 - "a joint initiative between the University of Portsmouth and the National Railway Museum (NRM)".
• The John Lewis Memory Store: ". . . a living history of John Lewis & Partners. Through the site, people share their memories, photos, maps and information about John Lewis & Partners, past and present."
• United Kingdom Cemetery Records, from Interment.net.