Genealogy research by Mark Humphrys,

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From here at

Top of Mount Merrion Ave, Co.Dublin, right now. From Dublin City Council. See full size.

My wife's three connections to the World family tree:

Augustus Reebkomp.

Barbara Yeats.

Dr. William Kerr.

My possible connection to the World family tree:

Blennerhassett Cashel.


Saturday, 16 February 2019

Updates on the Blennerhassett Challenge are here.

All my family tree research from my entire life is now online, on this site, except for:

New website style, Aug 2018


Mount Merrion House, Co.Dublin


Liam Cosgrave dies, 4 Oct 2017

My mother's first cousin Liam Cosgrave and I discuss our family history in 2013. Liam recalled times spent with his grandfather (my great-grandfather) Alderman Michael Flanagan, who lived through the Famine of 1845-50. It is incredible to think that Liam knew a man who lived through the Famine.

Things that were burnt in 1922

St. George's chapel, Windsor Castle

New scans in Gibbon branch

Huge update to early Humphrys tree, based on Glenstal Abbey papers.

Ryan tree now fully online.

P40 O'Mara papers in UL Archives

High-quality images from old Humphrys and Rahilly glass negatives


New images in Flanagan branch

Major update of Wells branch

I track down and photograph a document dated 1727 in my family tree, June 2016.

Aodhagán Ó Rathaille mentioned in accounts dated Sept 1727.

Films of James Mark Sullivan and the Film Company of Ireland

Humphreys and O'Rahilly prisoners in Mountjoy and Kilmainham

"The O'Rahilly" 1916 memorial events, Apr 2016.

Yeats ancestry updated


Kerr branch entirely updated

I wrote a short biography of Alice Cashel in Cumann na mBan: County Galway Dimensions, Galway County Council, 2015.

Me at the launch with one of the other contributors.
From Joe Travers.

Unfortunately, the rock star Bono does not have a Royal Descent:

Flanagan tree pushed back one more generation, to 1777:

I track down and photograph a document dated 1722 in my family tree, June 2015.

Signature of Aodhagán Ó Rathaille dated 9 Sept 1722.
See full size.

Talk on O'Rahilly family history, Ballylongford, 11 Apr 2015

I gave a talk on the O'Rahilly family history (click "Start") at a seminar on The O'Rahilly in Ballylongford, Co.Kerry, on 11 Apr 2015.


The topic of my talk.
See full program.


Apparently we exist because a man called Kennedy O'Brien was killed in a faction fight in 1825.

UCD Archives

New updates


The song "Darling Michael"

Dicey family tree - new photos

Possible living descendants of the poet Aodhagán Ó Rathaille

O'Rahilly tree now fully online.
  • O'Rahilly (or Rahilly, or O'Rahilly "Fionn", or The O'Rahilly) of Sliabh Luachra (and Ballylongford and Dublin)


The poet James Clarence Mangan

Brian Boru Millennium talk, 12 Apr 2014

I gave a talk on how we all descend from Brian Boru at the Brian Boru Millennium Commemoration Weekend, Killaloe, Co.Clare, 12 Apr 2014.

Brian Boru weekend, Apr 2014. Left to right:
Genealogist John Hamrock (of Ancestor Network).
Historian Grania Weir (dau of 16th Baron of Inchiquin).
Genealogist Paddy Waldron.
And myself.
See full size. From Ancestor Network. Used with permission.

Royal Descents in my family tree

Tree The descendants of: descend (or may descend) from: Notes
Cashel George Cashel and Mary Kickham Edward III Unproven
Ebrill Edward John De La Poer and Frances Mary Croker Edward I Not proved related
Flanagan Tom Jacomb and Philippa Winter Henry VII Proved
Humphrys Dick Humphreys and Eithne O'Mara Edward III Unproven
Humphrys Mark Humphrys and Elizabeth Gibbon Edward III Proved
Humphrys Dermot Humphreys and Eibhlín Sigerson Piatt Henry II Proved
Humphrys John Lloyd and Margaret Humphreys Edward I Unproven
O'Mara James O'Mara and Agnes Cashel Edward III Unproven
O'Mara Alec Spain and Eileen O'Mara Edward III Unproven
O'Mara Michael Rynne and Mary O'Mara Edward I Unproven
O'Mara Count Johann Heribert of Herberstein and Connie O'Mara Edward III No descendants
O'Rahilly Edward Wren and Josephine Hickie Edward III Unproven
O'Rahilly Peter Rahilly and Aileen O'Connell Edward III Not proved related

My grand-aunt descends from Henry II, but not Henry III.

Donnybrook, Co.Dublin

Lloyd may have a Royal Descent

My wife and my children have 23 descents from Edward III

Ahnentafel (Ancestor Number) Online Parser

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The history of the Thomond motor car


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Royal Descents of famous people

Common ancestors of all humans

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