The Vision of the Cross, Emperor Constantine the Great's vision before the Battle of the Milvian Bridge (by the School of Raphael in the Sala Costantino, Apostolic Palace, Vatican). The vision inspired the grant of the Arms of the Holy Cross by Saint Patrick to Conall, ancestor of the O'Donnells, and the motto,In Hoc Signo Vinces, which appears in Greek in this painting:  "Εν τούτῳ νίκα" (by this sign, conquer).

Research & References 


No Man's Land -

Selected Poetry & Art

published by Tyrconnell-Fyngal Publishing, Dalkey, 2020 

ISBN:  978-1-9162891-0-9  (108 pages, paperback)

For over fifty years, this poet/artist has written but never published his poetry. After much hesitation, he now brings forth this first selection, a fifth of the corpus. It reflects a multicultural heritage, and the richness that diversity of experience across the globe brings. There is frequently a close relationship between writings, especially particular resonance between this poetry, and his occasional art. Certain themes in poetry or prose are picked up, cited or visualized in the paintings. Allusions to scripture or spiritual references also occur.  

This small volume can be ordered from www.books.ie, based in County Kildare, Ireland. Click on this tab:


The Faction Fighters of the 19th century,  by Patrick Denis O'Donnell 

published by Anvil Books, Tralee, Ireland, 1975

Forthcoming, under preparation:
A Reference Guide to the Collected Works  

of Patrick Denis O'Donnell (1922-2005)

A catalogue (under preparation ) of an estimated 10,000 articles written over a period of 60 years, most of which were published in various journals, periodicals, or other collections.

In 1985, Comdt. Patrick Denis O’Donnell, and his comrade in arms, Comdt. Eoghan O’Regan, both of the Irish Defence Forces, known in Gaelic as Óglaigh na hÉireann (“Warriors of Ireland”), brought out Saoirse (Freedom), a Map of Ireland, focused on the War of Independence (1919-1921), also called the Anglo-Irish War (the latest of many Irish struggles against invasion and colonization) and which O’Donnell had researched at length, covering all of the military incidents of engagements, skirmishes, ambushes and assaults, between Crown Forces (British Army, with the British-controlled Royal Irish Constabulary, and their Auxiliaries) against Irish insurgency forces fighting for Independence. The map gives locations, casualty figures, and a chronology of 30 months of conflict. The map also indicates the regional concentration of incidents more in the southwest than north or east. While he did the research, and tabulations, the map design was done by Comdt. O’Regan, who also wrote the article here which appeared published in An Cosantóir, the Irish Defence Journal to which Comdt. O’Donnell was a regular subscriber and a frequent contributor. The map was published by Léaráid Maps of Dun Laoghaire on a scale of 1:575,000, and sized 32” X 24” (inches). The I.R.A. indicated on the map indicates the old Irish Republican Army precursor of what became in time the national official Irish Army, and should not be confused with the banned paramilitary entity that later arrogated the same name and acronym.

Intellectual Endeavour

Recent publications:

The O'Donnells of Tyrconnell

- A Hidden Legacy

published by Academica Press LLC, Washington D.C.

under its Maunsel Irish Research Series

Release date: February 2019

ISBN: Hardcover: 978-1680534740

Available direct from the publisher or from:

(See Resources tab)

Other works


Own works published

Analytical articles, essays, chapters, papers, and blogs;

Poetry and other literary material;

Compilations, biographical and bibliographical collections:

Artistic Creations
Oil paintings, watercolours, and other sketches, drawings, etc.  See tab "Corporeal"
Musical compositions, scores, and recordings (to be developed)​​