Mis-filed in the KEN section of the WW1 Service Records (WO 363):

Several pages for EDWARD FINN - joined S Lancs Fusiliers at Warrington, January 1897. Deserted 1898. Declared age 19y 2m. Mother: Mary. Sisters: Kate & Mary. Home address: Post Office, Balaghdaine, Mayo.

Followed by one page for PATRICK FINN - joined Rifle Brigade at Dublin, July 1894.
Declared age 19y 5m, born Baltinglass, Wicklow.

Anc****y, KEN, pages 51548 to 51559

(Apologies for spellings - I just copy what I see. Mr Google doesn't recognise Balaghdaine either!)