The O'Neill Line

Side of the Family - Maternal
Nationality - Irish
Origin - County Leitrim, Ireland
Arrival to the Unites States - May 1851

The O'Neill line begins with my 2nd great-grandmother Winifred Agnes O'Neill. The oldest currently known individual in the O'Neill Line is Con O'Neill, my 8th great grandfather, born around 1650 in Ireland. The O'Neill line was extensively researched by George K. and Patrick G. O'Neill. They are the authors of O'Neill Descendants of Con & Katherine 1700-2000 which was published on April 15, 2008.

To date there are 12 generations that descend from Con O'Neill and his wife Rachel McLonnian.

MB Boutiques: Blog Images &emdash; Ancestors - Maternal - O'Neill

To view other O'Neill family photographs visit The O'Neill Collection.

Michael O'Neill
(19 Sep 1827 - 08 Feb 1892)


  1. I think this is fascinating ! Just starting doing genealogy. Maiden name O'Neill Father Donald Larry O'Neill his father James Urban O'Neill his father Owen James O'Neill.

    1. Hi Jodi! Thank you for stopping by! I do see Owen James O'Neill (b. 16 Jan 1880 Clarion County, Pennsylvania d. 25 July 1956 Clarion County, Pennsylvania) married to Nellie Boyles in my records.

      Owen James is the son of Michael O'Neill and Ellen M. Cunningham, my 3rd Great Grandparents.

      You may be interested in visiting the Military Veterans page to learn more about Christopher D. O'Neill who is buried in the Ardennes American War Cemetery in Belgium.

    2. Yes that was my grandfathers younger brother. He has a memorial headstone at Immaculate Conception Cemetery In Clarion PA. I am in Ohio so I will be making a road trip To Clarion soon.

    3. Do you know where I can get copy of book by the ONeill Con and Kathleen would pay for it.

    4. Hi Jodi - I purchased my copy through the original authors. Send me a note at