12 April – Chartist Convention meets in London to arrange to submit another petition to parliament. Delegates include Morgan Williams, who brings with him a petition signed by 36,000 people from south Wales.
7 May – John Bennion of Flintshire, and his wife Elizabeth, arrive in Nauvoo on the John Cummins to join the Mormon community.
Missionary Thomas Jones produces his first Khasi Reader and his translation of a Welsh-language work Rhodd Mam ("A Mother's Gift") into the Khasi language.[27]
A Royal Commission chaired by Robert Hugh Franks reports on the employment of children in the coal industry in South Wales. They find that children as young as six are working twelve-hour shifts underground.
^Edward Breese (1873). Kalendars of Gwynedd; or, Chronological lists of lords-lieutenant [&c.] ... for the counties of Anglesey, Caernarvon, and Merioneth. p. 24.
^ abcJ.C. Sainty (1979). List of Lieutenants of Counties of England and Wales 1660-1974. London: Swift Printers (Sales) Ltd.
^Nicholas, Thomas (1991). Annals and antiquities of the counties and county families of Wales. Baltimore: Genealogical Pub. Co. p. 695. ISBN9780806313146.
^Cylchgrawn Hanes Cymru. University of Wales Press. 1992. p. 169.
^Edwin Poole (1886). The Illustrated History and Biography of Brecknockshire from the Earliest Times to the Present Day: Containing the General History, Antiquities, Sepulchral Monuments and Inscriptions. Edwin Poole. p. 378.
^Edward Breese (1873). Kalendars of Gwynedd; or, Chronological lists of lords-lieutenant [&c.] ... for the counties of Anglesey, Caernarvon, and Merioneth. p. 26.
^"not known". Old Wales: Monthly Magazine of Antiquities for Wales and the Borders. 3. "Old Wales" Office: 106. 1907.
^Nicholas, Thomas (1991). Annals and antiquities of the counties and county families of Wales. Baltimore: Genealogical Pub. Co. p. 612. ISBN9780806313146.
^Edward Breese (1873). Kalendars of Gwynedd; or, Chronological lists of lords-lieutenant [&c.] ... for the counties of Anglesey, Caernarvon, and Merioneth. p. 29.
^Amy Audrey Locke (1916). The Hanbury Family. Arthur L. Humphreys. p. 147.
^Jonathan Williams (1859). The History of Radnorshire. R. Mason. p. 115.
^William Stockdale (1833). Stockdale's Peerage of the United Kingdom. p. 86.
^Fryde, E. B. (1996). Handbook of British chronology. Cambridge England: New York Cambridge University Press. p. 292. ISBN9780521563505.
^Thomas Duffus Hardy (1854). Fasti Ecclesiae Anglicanae: Or A Calendar of the Principal Ecclesiastical Dignitaries in England and Wales... University Press. p. 305.
^ abcThomas Duffus Hardy (1854). Fasti Ecclesiae Anglicanae: Or A Calendar of the Principal Ecclesiastical Dignitaries in England and Wales... University Press. p. 307.