Also, Máire Bhuí Ní Laoghaire was a poet/songwriter from west Cork, near Ballingeary. She died in the mid 19th century but many of the songs she composed are still sung throughout Munster and Ireland.
See links for further information about her:

https://www.dib.ie/biography/ni-laoghaire-maire-bhui-a6189

https://muscrai.wordpress.com/2015/11/13/maire-bhui-ni-laoghaire-2/

BTW: The Muscraí Wordpress site is a great source of information and lyrics from the songs and singers of the Muscraí/Muskerry Gaeltacht in west Cork.