The Duggans were established at Mount Infant, parish of Nohavaldaly, barony of Duhallow, county Cork in the early 18th century. Daniel Duggan supported the Jacobite cause in the 1690s and from him descend Daniel and Henry Duggan. Daniel had a son Denis who married in 1756 Frances Galwey of Enniskeane and their son Daniel succeeded to the estate of his great uncle Daniel Cronin at Park, Killarney, county Kerry. At the time of Griffith's Valuation Henry Duggan held at least 7 townlands in the parish of Kilmeen, barony of Duhallow, county Cork, while Arthur Duggan held land in the parish of Clonfert, barony of Duhallow. In the 1870s Henry Duggan of Monkstown, owned 1,592 acres and Daniel Duggan of Dublin owned 533 acres in county Cork.
- Confirmation of arms to Alfred Martin Duggan Cronin of Kimberley, South Africa, son of George Roche Cronin, with mention of descent from Denis Duggan of Mount Infant, Co. Cork, and Denis's wife, Frances Galway, niece of Daniel Cronin of Park, Co. Kerry, Dec. 3, 1924. GO Ms.111c, fol.57 ; National Library of Ireland
Contemporary printed sources
- PARLIAMENTARY PAPERS. ''Return of owners of land of one acre and upwards, in the several counties .... in Ireland''. HC 1876, LXXX: 122
- HUSSEY DE BURGH, U. H. ''The Landowners of Ireland. An alphabetical list of the owners of estates of 500 acres or £500 valuation and upwards in Ireland''. Dublin: Hodges, Foster and Figgis, 1878. [available online at www.askaboutireland.ie] : 139
- LEWIS, Samuel. ''A Topographical Dictionary of Ireland''. London: S. Lewis & Co., 1837: I, 240 (Elmvale)
- ''GRIFFITH'S VALUATION OF IRELAND'[Primary Valuation of Tenements]', 1850-1858. : Fermoy Barony, 21 (Baltydaniel East),