[S205] 1939 National Register of Wales, Vaynor and Penderyn, Glamorgan, 139 High Street , Robert H. Roberts; digital image, Findmypast (http://www.findmypast.co.uk: accessed 31 August 2016); Ref: RG101/7279E/013/38 Letter Code: XHNF.
[S207] 1911 census of Wales, Glamorgan, Merthyr Tydfil, Robert Hy Roberts; digital image, Ancestry (ancestry.co.uk : accessed 15 December 2017); citing Class: RG14; Piece: 32476; Schedule Number: 87
[S208] "England & Wales, National Probate Calendar (Index of Wills and Administrations), 1858-1966, 1973-1995", digital images, Ancestry (http://www.ancestry.co.uk : accessed 15 December 2017), entry for Martha Alice Roberts died 4 January 1973 in Cefn Coed, Breconshire, Wales; citing Principal Probate Registry. Calendar of the Grants of Probate and Letters of Administration