| Frank Flood and the Drumcondra Ambush | Ryan, Seán | Article in Journal | | 2018 |
| Moya Llewelyn Davies: spy, stalker, patriot or fantasist? | Ryan, Seán | Article in Journal | | 2021 |
| Ralph Sneyd and Muckross: an English squire who aspired to ownership of Muckross House and Muckross Estate, 1890-1902 | Ryan, Sean | Article in Journal | | 2008 |
| Shooting ‘the Dog’ [DMP Detective Sergeant Patrick Smyth – the first G Division casualty of the War of Independence] | Ryan, Seán | Article in Journal | | 2019 |
| The genesis of Killarney National Park | Ryan, Sean | Article in Journal | | 2010 |
| The Killarney deer forests clearances - fact or fiction? | Ryan, Seán | Article in Journal | | 2004 |