Hi again Swansgal, this I believe is Evan Davies in 1881/91:-
1881 Census
Evan Davies 44 occ Farmer of 66 Acres
Margaret 38 b Ystrad
Evan 16 b Ystrad
James 10
John 8
Elizabeth 5
Mary 1
Anne Jones 32 Servant
All other than shown born Dihewyd
Residing at Brynaubach, Dihewyd, Cardiganshire
Census Ref RG11/5440/11/1
1891 Census
Evan aged 27 Married occ Coal Miner b Ystrad is a lodger with David and Mary Jones & family in Aberdare
Census Ref RG12/4447/67/25
Keyboard86