Boar War lookup please

[Sonia Gardener]

I have the following information

William James Palmer 38247 Trooper 135th Coy 30th Bn Imperial Yeomanry 2nd Boer War. 

I know he wasn't a casualty or prisoner and it has been suggested that his attestation papers would be in WO128 at the National Archives Kew.  Would anyone be able to look at them for me to establish if this is our William James Palmer?  He was born William James Villis Palmer May 20th 1872 Nether Stowey in Somerset.  Mother given as Eliza Palmer but no father given
Any help or pointers would be much appreciated
Sonia