Born: 06 June 1927, Bartra, Dalkey, County Dublin
Entered: 07 September 1945, St Mary's, Emo, County Laois
Died: 24 April 2016, Clonskeagh, Dublin, County Dublin

Left Society of Jesus: 18 December 1945

Son of Joseph Brennan and Margerita Ryan. Father was manager of a number of insurance and finance companies.

https://rip.ie/death-notice/gabriel-gay-brennan-dublin-clonskeagh-274141

Gabriel (Gay) BRENNAN
Brennan (Clonskeagh, Dublin) – April, 24 2016, Gabriel (Gay), peacefully in the presence of his family, pre-deceased by his wife Éilis (MacCarvill), beloved father of the late Deirdre; deeply regretted by his children Niamh, Orla, Maeve, Diarmuid and Feilim, brothers Fr Joe SJ, Anraí Ó Braonáin, sister Denise, brothers-in-law Diarmuid and Niall, sisters-in-law Ann, Dimphne, Donla and Máire. Sadly missed by his grandchildren Sarah, Hugh, Ross, John, Sarah and Grace, sons-in-law Michael and Jupp, nieces, nephews and his many friends.