Sophia Emily Frederick (1798–1878)
Daughter of the Rev. Thomas Watkins of Pennoyre, Brecon, Wales. Married Arthur Frederick in 1825. Mother of Elizabeth, wife of F. C. Ashworth, and Ellen, wife of George Atherley.
Census returns of England and Wales 1851 (The National Archives: Public Record Office HO107/1670/284/13)
IGI (accessed 14 September 2015)
England & Wales, national probate calendar (index of wills and administrations), 1858–1966 (Ancestry.com, accessed 14 September 2015)
London, England, births and baptisms, 1813–1906 (Ancestry.com, accessed 11 September 2015)
Morning Post, 13 July 1825