I have been trying to establish the situation with regard to Robert Jones, father of John Jones. It isn't easy to put it mildly. As AJ has discovered there are two families with the names of John and Ann Jones who are the potential parents of Robert Jones. It is extremely difficult to determine which ones are the family of Robert Jones, father of John Jones, who we are interested in. I would be interested to know if AJ had any views on this.
There is a WW1 service record for Thomas Owen Jones showing his father to be Robert Jones of Pen y Groes Ffordd, Maenan. The document is dated 1916.
There is an entry in the 1881 census which looks interesting to me:
Caerhun, Plas Ofer.
Robert Jones Head, married age 25, Farm labourer born Caerhun.
Elizabeth Jones, wife age 27, born Llanrhos.
Robert Jones, son, born Caerhun.
The ages of Robert and Elizabeth are similar to those in other years. Elizabeth is shown born Llanrhos which is near to Llandudno. It would also fit with a marriage c1878.
In the 1861 I tend to favour the family of John and Anne Jones as follows:
Caernalach, Caerhun.
John Jones Head, married, age 61, Farmer, born Caerhun.
Anne Jones wife, age 45, born Trefriw.
John Jones son, age 9, born Caerhun.
Robert Jones, son, age 7, born Caerhun.
Elizabeth Jones, daughter, age 5, born Caerhun
Robert Owen, visitor, age 15, born Caerhun.
This brings in the Owen name which appears elsewhere. There is also a link to Trefriw.
There is a large difference in age between John and Anne Jones which suggests to me that John Jones may have been married before.
There is an entry for them in the 1871 census which has Robert Jones age 16. They are living in the same place as the 1861.
It is of interest that in the entry for the 1891 census, Robert Jones was missing from home. There is an entry for Robert Jones age 36 in Caerhun in the same place as his family were previously. This is as follows:
Caernalach (Caemalach?) Caerhun, Robert Jones Head, widr, age 36, Farmer, born Caerhun. The only other people in the household are two servants.
The difficulty with it is he is shown as a widower.
I would appreciate your thoughts before I do any more on this.
I have seen a tree on Ancestry which shows Robert R Jones bc 1854 Caerhun, d 29/07/1916, Pen y Groes, Ffordd Maenan, Llanwrst, to be the son of John and Ann Jones. John 1826-1905, Ann Thomas 1827-1913. Robert's wife is Elizabeth Ann Williams, 1854-1920. Elizabeth is shown as born Llandudno and died Maenan (with a query). Their children include John Jones 1881-1916 and Thomas Owen Jones 1894-1944. The tree owner is Emlyn. The trouble is you cannot rely on these being accurate.