Found the ARNOLD family of the 1881 Census with Joseph STIDDER - who turns up on later on the 1891 census with Edward & Ellen

1881 Wales Census, Monmouthshire, Lower Llanvrecha

Morris's Row

Llanvrechva

Edward ARNOLD - Head, married age 88 Gardener, born Wiltshire, Donhead St Mary
Jane ARNOLD - wife - married, 77, born Wilts, Sembley
Sarah ARNOLD - daughter - unmarried age 25 - born Monmouth, Shirenewton
Emily J ARNOLD - Granddaughter - age 9 months born Monmouth, Llanvachva Lower
and

Joseph STIDDER - Grandson, age 10 - Scholar, from Glamorgan Tongwrynlais