Thanks for the response Mick.
I actually got my dates slightly wrong - he was born in 1899/1900 at Curragh.
I've spent much time studying the 11th's history, because I convinced myself years ago that he'd served with them. The Regimental Museum doesn't have any records for enlisted men/nco's. Also, because he died as an officer, I dimly recall that the service records in question were destroyed in WW2.
As for the 11th's postings. General dates can be misleading. Often, Regiments sent detachments to serve overseas with different Regiments, or would send A & B Squadron but leave C at home.
I've since discovered that his wife's family lived in Cheriton, the village next to Shorncliffe. So now I, trying to find a regiment to fit the following dates and locations!!
1898/9 - Shorncliffe
1899/1900 - Curragh
1901 - Overseas
1908 - Shorncliffe
I'm still going with the 11th - comes back from India to Shorncliffe. He meets and falls in love with a local girl. New posting to Curragh, she gets pregnant and gives birth there, whilst he goes off to Sth Africa. She takes her first-born home to her parents in Kent (1901 census). He comes back from the war and is posted to Shorncliffe. Child number 2 is born there. He retires in shortly thereafter. Rejoins in 1914 as Lt QuarterMaster and then, very sadly dies of wounds in 1918, aged 49.