Peter, I find nothing on any of those sites definitively identifying John YOUNG d. 1886 Azul, son of Janet WHITE and James YOUNG. I have been through all the 1886 deaths and burialsfor all of Argentina on the argbrit site.
I'm afraid I don't understand how you so quickly came up with his parents through any Argentina records. His death in Azul is recorded on his parents' memorial in Spott, Scotland, but I am searchingfor his death record or family records in Argentina.
There are some YOUNGs in the various databases at the argbrit site, but I see nothing that makes the link to my Scottish YOUNGs in any of the records I have looked at. When you refer to the Anglican Church archives, do you mean some official Anglican site, or the argbrit extractions?
Also, I get zero matches at familysearch.org for John YOUNG d. 1886 Argentina, so can't understand how you got bio information there?