1841 Robert Vaughan (Shoemaker, born 1818) was at the home of David Owens in Bontnewydd.
1841 Ellinor Williams (1815) with daughters Ellinor (1837) and Mary (1839) are listed under many entries for the Vicarage, Llannefydd - cannot read Ellinor's occupation, seems to be something mistress.
1851 Robert is shown as being in Llannefydd Village with wife Ellinor (1813) and children Ellinor (1838) and Mary (1839) who are both shown as Williams, along with three Vaughan children - Louiza (1845), John (1848) and Margaret (1850). Seems Robert married Ellinor and took her two daughters as his step-children,
Cannot trace them in 1861 or 1871, although there is an Ellinor and Louisa at Rhydyddauddwr, Criccin, St Asaph (farm mid-way between Rhuddlan and St Asaph) as servants, and they would seem to be the same ones as above.
1881 Robert, Ellen (Ellinor) and John are in Fron Deg, Llannefydd. John is shown as a 32 year old widower.
1891 at Fron Deg there is Margaret Vaughan (nee Williams) with children Alice Louisa Vaughan (1884), John Philip Vaughan (1888) and Robert Owen Vaughan (1890). John is at Maenan Mill in 1891. Robert & Ellinor are not listed.
After that John & Margaret Vaughan and children were in Pontwgan, Nr Rowen.
Any connection to yourself?