Hi
The family is almost certainly 'Purdon of Tinerana', Co.Clare. Tinerana House is at Killaloe:
http://jamestreacy.com/tinerana.htmThe family is covered in 'Burke's Landed Gentry of Ireland' (1912), pages 579-560:
Rev Purdon's father Simon Purdon married Anne, daughter of George le Hunte of Astramont, Co Wexford 'and had, inter alios, a son' -
'Rev. William John Purdon, of De Vesci Terrace, Kingstown, Co.Dublin, M.A. Oxon. He m. 1st, 9 Sept 1824, Charlotte Emily, dau. of Right Hon. Denis Browne, M.P. (see Burke's Peerage, Sligo, M.), by whom (who d. 23 Apr, 1838) he had two daus., Emily Jane, and Anna Maria. He m. 2ndly, June, 1842, Katherine Geraldine, dau. of Sir Ross Mahon Bart., of Castlebar'.
Hugh Weir, 'Houses of Clare', pages 262-263 states that Tinerana House still stands and is inhabited - it was a health centre in recent times. It's in the townland of Islandcosgry, Civil Parish of Ogonnelloe. Location is east of the Scarriff road, 8 km north of Killaloe.
Canon James B. Leslie wrote the authoritative biographical surveys on the clergy of the Church of Ireland. Several of these have been reprinted in recent times. The Representative Church Body Library in Dublin holds the records of the clergy (ireland.anglican.org).
I hope this helps.
Gerry