Hello sheabear,
The last part of your post requested information on the Roberts family.
They are in Rhyl in the 1901 census and the family shown is as follows:
Edward Roberts aged 41, widower, Farm Labourer, born Bagillt.
William John Roberts, aged 10, born Bagillt.
Thomas Roberts, aged 8, born Bagillt.
Benjamin Roberts aged 5, born Bagillt.
Ref is RG13/5236 Folio 169, page 18.
In the 1881, Edward Roberts is a lodger in a household in Bagillt. He is shown as aged 21, a collier, born Bagillt. It looks to show "married". No sign of his wife.
There is a site which shows the details of people injured and killed in the 2 world wars and it is
http://www.cwgc.orgI did search for William Roberts but it produced 560 hits and difficult to narrow them down I am afraid. It may be worthwhile to go through these as sometimes they list the next of kin. For Thomas Roberts, there were 222 hits and again, hard to identify the right one.
Jo