In the 1830s John Irwin Dennis leased Bermingham House and estate from the Trotter family and bought the property in 1851 in the Encumbered Estates' Court. At the time of Griffith's Valuation the estate of John Irwin Dennis was situated in the parishes of Dunmore and Tuam, barony of Dunmore, county Galway. John Irwin Dennis left his Bermingham estate to his nephew John Dennis, a remarkable horseman and huntsman. Although located in the townland of Birmingham Demesne, the house and estate appear to be generally referred to as 'Bermingham'.
|Name||Townland||Civil Parish||PLU||DED||Barony||County||Map Ref|
|Fiddaun Lodge||Fiddaun||Kilkerrin||Glennamaddy||Shankill 80||Tiaquin||Galway||
OSI Ref: M633 542
OS Sheet: 31
Discovery map: 39
|Bermingham/Birmingham House||Birmingham Demesne||Tuam||Tuam||Tuam Rural 222||Dunmore||Galway||
OSI Ref: M468 532
OS Sheet: 30
Discovery map: 39
|Carrowroe House||Carrowroe North||Lickerrig||Loughrea||Kilconierin||Athenry||Galway||
OSI Ref: M574239
OS Sheet: 97
Discovery map: 46
- Encumbered Estates' Court Rentals (O'Brien), Trotter, 18 Mar 1851, Vol 6, MRGS 39/002, (microfilm copy in NUIG); National Archives of Ireland
- Bermingham photos & press cuttings. 093/061 & 047/016; Irish Architectural Archive
Contemporary printed sources
Modern printed sources
- MELVIN, Patrick. John Dennis (1800-1869) and the Sporting Tradition of Tuam. In CLAFFEY, John A. (ed). ''Glimpses of Tuam since the Famine''. The Old Tuam Society, 1997 : 59-66
- ''Irish Sword'': MELVIN, Patrick. Colonel Maurice Griffin Dennis, 1805-63. XIII No. 50, (1977)
- CRAIG, Maurice & Craig, Michael. ''Mausolea Hibernica''. Dublin: The Lilliput Press, 1999. : 100-101.
- MULLALLY, Dr Evelyn. ''Clonbern Graveyard Its Monuments & People''. Belfast: The Follies Trust, 2011 : All.