The 1881 census records John Williams, 53, “Farmer of 170[? or 120] ac.”, with his wife Mary and children at “Llandough Home Farm”, Llandough (RG11/5288 p.2). Our case: the census mixed up the Llandough farm with Great House Farm, so this is Great House Farm under another name
Source: EV-0224 / Master Timeline, 3 April 1881