Ó Seanacháin (Diarmuid Peter)

7222.
Ó Seaneacháin (Diarmuid): Caol Uisce and Domnach Mór: two medieval mysteries by the Erne.
In Donegal annual 56 (2004), pp. 116–125.
16443.
Ó Seanacháin (Diarmuid): Fentona Mc Gillagh Quoyne: a medieval Gaelic estate.
In Clogher record 20/3 (2011), pp. 521–533.
Discusses the land units known as baile biataigh and baile bó in late Gaelic Ireland, using the baile biataigh of Fentonagh in modern Co. Tyrone as a case study.
16706.
Earley (Joseph E.), Ó Seaneacháin (Diarmuid): The medieval island church in Lough Garadice.
In Breifne 13/50 (2015), pp. 439–469.
On the ecclesiastical site on Church Island in Garadice Lough, Co. Leitrim.