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The Blennerhassett Challenge - Things to do - Letitia Blennerhassett

  Cashel at Tarbert 1806

Where was Letitia in 1806 to 1811?

Was Letitia in Cork 1806 to 1811?

George Cashel at Tarbert 1811 to 1828

Letters of any Co.Kerry family in 1806

Land records



Other Dublin




  DNA testing of Letitia Blennerhassett

  George Cashel baptism

  1806 deed

  Regiments at Tarbert around 1806

  George Cashel witness to anything

  1806 reference in LDS

Things to do - Letitia Blennerhassett

The solution to The Blennerhassett Challenge may or may not lie with this person:

But one must keep an open mind. The solution to The Blennerhassett Challenge may lie elsewhere.


  1. Have checked all George Cashel material for LINDSAY, BRODRICK, PONSONBY, MILLER, MONSELL

  2. Tarbert history

  3. Law cases published. Search for "Reports of Cases Argued ... in Ireland" in:

Google searches

  1. Ponsonby Crotto
  2. Ponsonby Crotta
  3. Ponsonby Blennerhassett
  4. Rowland Ponsonby Blennerhassett
  1. Ponsonby Cashel
  2. Letitia Ponsonby Cashel
  3. Richard Ponsonby Cashel

  4. Ponsonby Cashell
  5. Letitia Ponsonby Cashell
  6. Richard Ponsonby Cashell

  1. Ponsonby Tarbert
  2. Letitia Ponsonby Tarbert
  3. Richard Ponsonby Tarbert
  1. Cashel Tarbert
  2. "George Cashel" Tarbert
  3. "Cashel, George" Tarbert

  1. Cashell Tarbert
  2. "George Cashell" Tarbert
  3. "Cashell, George" Tarbert

Find Mr. Cashel at Tarbert around 1806

The theory is that Letitia Blennerhassett met a Mr. Cashel in Tarbert around 1806.

There is no CASHEL living in Tarbert area around 1806. So who is he?

He might be from a temporary population, e.g. the Army base at Tarbert Island.

Or he might be from further away in Co.Kerry and visiting.

Where was Letitia in 1806 to 1811?

If Letitia separated from Ponsonby in 1806, where did she live in 1806 to 1811? Where did she baptise the baby?

Was Letitia in Cork 1806 to 1811?

Find George Cashel as a youth in Tarbert 1811 to 1828




Erasmus Smith school, Tarbert




Early job

Find letters of any Co.Kerry gentry family in 1806.

If Mrs. Ponsonby caused scandal at Tarbert in 1806, almost any Co.Kerry family might mention it in gossip.

  1. Sir Edward Leslie, Baronet, letters:

  2. Knight of Kerry papers at [PRO.NI]

  3. William Ponsonby papers - His regiment was at Tarbert in 1808.

Land records: LR and VO and NAI.VO


  1. Track Lindsay properties in Tarbert


  1. Find Memorial (not full deed) of 1778 separation - Is it phrased same way as 1806 memorial?

  2. Identify "A.Blennerhassett J.P."

  3. DONE first pass of BLENNERHASSETT in 1758-1812 (before got interested in Rev. John and Letitia)
  4. DONE first pass of BLENNERHASSETT in 1794-1815 (since focused on Rev. John and Letitia)
  5. DONE first pass of CASHEL/CASHELL in 1758-1812

  6. DONE first pass of PONSONBY 1800-15 and 1822-39.
  7. See complete PONSONBY index of 1800-1809:
    p.485 and p.486 and p.487 and p.488 in Grantor index N-Q 1800-1809

  8. (todo) FULLER
  9. (todo) FINN

  10. Not relevant: Deed of 18 Oct 1802. Patrick Maher of Tarbert to Officers of Ordnance. Book 549, p.203, no. 363194. Page 111 (online numbering) in Deeds, etc., v. 549-550 1802-1803.

  11. LINDSAY - have searched around 1806 and 1811
    • Have done first pass of 1813-99.
    • Irrelevant:
      • William Lindsay, 1814
      • William Lindsay, 1817
      • William Lindsay, 1818
      • William Lindsay, 1819
      • William Lindsay, 1820 (all)
      • William Lindsay, 1821 (all)
      • William Lindsay, 1823
      • William Lindsay, 1825 (all)
      • William Lindsay, 1828
      • William Lindsay, 1829
      • William Lindsay, 1831
      • James Lindsay, Tralee, 1855

  12. Find 1804 deeds
  13. Search for Ponsonby deed, 12 Nov 1795
  14. Wider search of index for these names:
    • MILLER - have searched around 1838.
    • MONSELL - have searched around 1838.

LR - Search for more deeds for Thomas and John

(todo) see transcripts of the following ones of interest:

Grantor Grantee Date Vol Page No
John Blennerhassett Bourke 1811 631 333 434016
John Blennerhassett Leake 1811 631 491 435842
John Blennerhassett Bourke 1812 639 391 442391
John Blennerhassett Curtayne 1812 654 136 449907
John Blennerhassett D'Esteere 1813 663 93 454920
John Blennerhassett Flood 1814 677 330 466554
John Blennerhassett Allman 1814 682 182 469330



  1. [CSORP] agrarian policing actions
    • See William Lindsay policing actions against agrarian insurgents in co-operation with Robert Leslie junior.
    • George Cashel, if stepson, would have been the oldest child at home, and a teen. He might have helped.
    • Found newspaper accounts of William Lindsay policing actions 1821-22.
    • Agrarian rebellion was 1821-24.
    • Online CSORP index is 1818-22.
    • Indexes removed from shelf for cataloguing, but can be ordered.
    • Any sources other than CSORP?

  2. CSORP searches done:

    Search Done To do Notes
    TARBERT 1818-22   Online so could do free text search
    LESLIE 1818-22 and 1824-27 1823  
    LINDSAY 1818-22 and 1824-32 1823  
    MILLER 1827-32    
    CASHEL 1827-40    

    • Try this:
      • R.Leslie, Co.Kerry, 1826 / 13,440
    • Irrelevant:
      • MILLER, 1827, no.2075
      • LINDSAY, 1828, no.1477
      • LINDSAY, 1829, no.622
    • Apparently nothing on Belfast police

  3. CASHEL police career:
    • DONE proper pass of CASHEL 1827 to 1840, and 1861-62
    • DONE quick pass of CASHEL 1844-46, and 1853-60, and 1867 and 1882
    • (todo) proper pass of CASHEL, 1841 to 1883

  4. [CSORP] other

NAI - Other

  1. List of children at Erasmus Smith school, Tarbert, in 1809 was sent to Dublin Castle. Are there any other lists?

  2. DONE search of LINDSAY in Petty Sessions in North Co.Kerry
    • Ballylongford Petty Sessions records, 1855 on.
    • Tarbert Petty Sessions records, 1860 on.
    • These are digitised at

  3. Customs records
    • Have searched CUSTOMS in "Index of Official Papers" (up to 1831) (OP), RR card index. Match these references into the second index (behind counter).
    • Have done these, nothing found:
      • Salaries of customs officers, Irish Office, 23 Apr 1810, OP ii 299/6
      • Letters re: Vacancies for boatmen, Irish Office, Mar-May 1810, OP ii 299/12
      • Compensations to customs officers, Mar-Dec 1810, OP ii 299/24
      • Commissioners of customs, and Salaries of customs officers, 1810, OP ii 342-43
    • (todo) Search second index itself (may not be fully indexed in card index)
    • Irish coastguards

  4. Court cases - See "High Court of Justice, 1699-1964", finding aid, RR

  5. Monsell family, M.6124, Misc. Subject Index.
  6. Private Accessions, J.F. Fuller, 4 Jan 1923, 1/9.

  7. [O'Kief]
    • done quick pass of LINDSAY, MILLER, PONSONBY
    • (todo) exhaustive search - big job



  1. O'Hara papers
    • We are proposing that Richard Ponsonby, the nephew of Charles O'Hara (the younger) (MP for Sligo County 1801-22, died 1822), separated from his wife around 1806 after she had an affair. Quite possible that some O'Hara letter would mention it.

  2. Rowan papers
    • Might be more Ponsonby papers.

  3. [Denny, 1923] mentions a Ponsonby pedigree in the possession of Thomas Sadleir.
    • This might be in various Sadleir papers at NLI.
    • NOT FOUND in these:
      • Letters of Thomas Ulick Sadleir, NLI GO MS 1000. Finding aid in NLI GO RR is same as this PDF:
      • NLI Report on Private Collections, No. 31: Report on the Sadleir Papers, NLI GO RR.

NLI newspapers - 1829 - Clashmore Petty Sessions

  1. George Cashel drunk incident - 1829 - Clashmore Petty Sessions
    • Waterford newspapers. Short period: 17 Aug 1829 to 2 Sept 1829.
    • Clashmore is close to Co.Cork border. Could also try Cork newspapers.

  2. DONE search. No mention of Clashmore Petty Sessions at all.
    1. No Waterford titles at
    2. Waterford Mail.
      BL has this period. Online at britishnewspaperarchive for 1829. Browse here.
      Note that Clashmore petty sessions of Mon 19 Oct 1829 is reported on Sat 24 Oct 1829
      DONE - Searched 19 Aug 1829 to 12 Sept 1829.
    3. Waterford Chronicle.
      NLI and BL have this period. Online at britishnewspaperarchive for 1829. Browse here.
      DONE - Searched 22 Aug 1829 to 12 Sept 1829.
    4. Waterford Mirror.
      NLI (microfilm) and BL have this period.
      DONE - Searched 17 Aug 1829 to 12 Sept 1829.

  3. (todo) Get exact date of 1829 Clashmore Petty Sessions.
    Find an Irish Law Calendar 1829

NLI newspapers - other

  1. search (no known article)
    1. Louisa case 1827 - try Chute's Western Herald
    2. William Miller arrested, jailed and dismissed 1830
    3. confirm Honoria Ponsonby death 1864
    4. deaths - funeral lists
    5. Court cases - See [NAI] section

  2. Belfast funeral lists
    • Thomas Lindsay, Belfast, 1861
      • searched Belfast Morning News
      • searched Belfast Newsletter
      • searched Northern Whig
    • Thomas Lindsay's wife 1858
      • Belfast Morning News
      • Belfast Newsletter
      • Northern Whig (offsite - ring in advance)

NLI - other

  1. [History of the Irish Parliament]

  2. Sources for life of Charles Coote, 1st Earl of Bellomont.

Other Dublin

  1. GM

  2. [RCB]

  3. [RIA]
    • Have searched all Fuller papers.
    • Have gone through card index for all references to FULLER in Academy Minutes (VII and VIII) and Council Minutes (XXV). Have seen all these. They record many donations of books and material to the RIA by Fuller.

  4. Ponsonby grant of arms in Dublin or London? (Might have genealogy.)


  1. Blennerhassett

  2. Hewson

Ireland (outside Dublin)


  1. [KCL]
    • Other Blennerhassett papers
    • Nothing on LINDSAY in card index.
    • Done PONSONBY in [Denny, 1923]. Nothing on LINDSAY.
    • Lislaughtin Abbey inscriptions.
    • DONE file on St.John's church, Tralee drawer
    • DONE Kilnaughtin cemetery inscriptions (Tarbert). Nothing found.
      Does this cover both old and new Kilnaughtin churches?

  2. Tarbert
    • Large raised Gallagher tomb, Kilnaughtin Cemetery, old Kilnaughtin Church.

  3. Aghavallen memorial inscriptions, [KGS]. Not in KCL.


  1. Glin Castle papers and letters.

  2. Limerick
    • St.Munchin's - can't find Monsell grave in the map held by the Cathedral - could try other list of inscriptions at [LG]

  3. [LCL]
    • Done MONSELL file in filing cabinet, Local section.
    • Done first pass of Limerick Gazette (looking for Letitia scandal) for all of 1806.


  1. NI police museum

  2. [PRO.NI]


  1. Ponsonby in UK and Irish archives

  2. Leslie in UK and Irish archives
    • Letters to Sir Edward Leslie, 1st Baronet, in England, could mention Letitia in 1806 (local scandal).
    • Where are Pierce Leslie Pielou's papers?

  3. [BL]

  4. [NA.UK]

  5. [GRO.UK]

  6. [COA]

  7. British military

  8. [CUL]
    • Joseph Foster papers
      • Foster had good information on Letitia.
      • But DNB said his papers were dispersed.
      • There are some in CUL. But do not look relevant.

U2 at Live Aid in 1985 - the summer when my lifelong quest for Letitia Blennerhassett began.
Is it about to finally end?

Me at Ballyseedy in 1985, at the start of the life-long hunt for Letitia Blennerhassett.
Is it about to finally end?

Extract from 1925 poem, "Ruins of Crotta House".
"Where are the cherished paintings".
Indeed, where are the Ponsonby portraits, letters and papers?

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