Hi
This could be him in 1891
Chichester barracks
Henry Elphick soldier single 19 Private Royal Sussex Regiment Barkham, Sussex
1891
Near Barcombe Mills Station, The Lawn, Barcombe
Henry Elphick hesd mar 48 Millers Lab Sussex, Barcombe
Ellen " wife mar 43 " Buxted
Kate " dau 10 " Barcombe
Polly " dau 8 " "
Same family in 1881 RG12/846 188/13 which includes
Harry Elphick born 1872 Barcombe
Added apologies if you already have , have just seen your other post, is it his Army Records you were after?
Best wishes
Cathy