A couple more refs:

Banners and ballads (Review)
J Gorman, S Corcoran - 1979 - JSTOR
… to Ireland, and the many excellent Irish combination songs are … no anti-blueshirt songs and
the Spanish Civil War song 'The … derivative Irish one. There is quite a good biographical note …

Concepts of Regionalism in Irish Traditional Music
S Corcoran - Blas: the local accent in Irish traditional music, 1997

Canons, Curricula and Power in Irish Music
S Corcoran - … an Cheoil–The Crossroads Conference 2003, 2013 - Whinstone Dublin