The family can be found in the 1861 census (LLanrug - District 6 - Page 16 - House number 85) at Tai'n Lon in Llanrug (Richard is named as Richard R Parry = Richard Robert Parry, no doubt). Tai'n Lon is located on the main road that runs through Llanrug, not far from the Glyntwrog pub.
As a matter of interest, Robert Ifor was initiated into the Bardic Circle in 1875 under the name Glan Ifor.http://newspapers.library.wales/view/3307547/3307557/97/
and also in 1875 Richard Ifor published a poem celebrating the birth of Robert Ifor's childhttp://newspapers.library.wales/view/3534675/3534678/18/
Hope this helps