To download a pdf of the McGillen descendants, click on: McGillen

(updated 1 July 2020)

Please e-mail me if you have any suggestions, corrections or additions.

My thanks to Maureen Day, my second cousin, who provided me with her research on the McGillen family. Her thorough work and her collection of photographs are invaluable.

Maureen’s ex-husband, Philip Day, wrote a book on their genealogy. Maureen was kind enough to share the McGillen part with me and I shall include it here.

McGillens by Philip Day

Maureen’s special gift was a picture of Mary Ann McGillen Doherty, my grandmother, who died long before I was born. I remember meeting Aunt Nora Flynn and Aunt Clara Forestall in Bellevile when I was young but had no idea what Grandma Doherty looked like.  And she was a real beauty, almost identical to her sister, Nora. I guess Grandma Doherty would have looked like Aunt Nora in the picture below, had she lived to a good age.  I remembered Grandpa Doherty as an old man but seeing him in this picture gives me new insight.

Finding Maureen was a wonderful accident. My mom had a newsletter announcing a McGillen family gathering from many years ago.  I called the contact number and there she was, ready to drive three hours to meet a distant relative and share her genealogical research.

What amazed me is how the Heffernan clan intermingles its way throughout my research.  Here they are again.

Note to family members: This file has been privatized. This means that the personal data of all living individuals has been made private.   I welcome all enquiries, corrections, additions. E-mail Me if you wish to get more information.

5 thoughts on “McGillen

  1. Thanks for this information, Arnold Forestell and Clara McGillen were my grandparents. I recognize the one picture with grandma & grandpa and her sister Nora. My father was Donald Paul Forestell who passed away March 17th, 1996. Have been searching for information and was very excited to find this.

  2. It’s wonderful to hear from you. I will send you what I have about your family and perhaps you can make additions / corrections.

  3. I found your post when checking on background of family McGillen. My grandfather Patrick McGillen emigrated to New Zealand from Northern Island in 1867. This is the only McGillen family in New Zealand and Australia. In my case we transferred to Australia from New Zealand in 1981. I am sure there would be a family connection between the McGillens who migrated from Northern Island to North America and Patrick McGillen who headed for New Zealand. I must do more work on this.

  4. Hi Ken. Have you or anyone in your family done DNA testing? Several of us have and that would be a good way to start, I used ftdna and then uploaded the results to It’s a free site which allows you to compare with people who have been tested on different sites. Then because a few of the people I was trying to connect with refused to share their results on, I also paid to have my DNA tested on And several of our McGillens have their results there. With Black Friday coming up this week, I am wondering if there are sales on DNA tests. Hope we can make the connections.

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