Hi Ken,
The record certainly shows ticks and there is no sign of him in the school records so it looks as though you are right. Alexander Ross was his brother in law, my grt grandfather, married to Joseph's sister Margaret. Alexander was in the Royal Artillery and was stationed in Yarmouth in 1881, but I cannot find his army record pre 1915, although he was in the Yeoman of the Guard around 1906 1908 and censuses show him in RGA. I know Joseph's father was called John, but that's it. I will try the Irish GRO
Nic