Sunday 1 March 2020

Seeking descendants of Martin Keogh and Ellen Ryan

My main genealogy project at the moment is tracing the descendants of my third-great-grandparents, Jeremiah Keogh and Jane Crosby, to see which of them can be identified among my mother’s list of DNA matches.

And, in doing so, it also struck me how easily entire branches of a family can sometimes die out.

In addition to their daughter, my great-great-grandmother Maryanne Keogh, Jeremiah and Jane had three known sons - Thomas, Martin and John. I wrote about Thomas and his descendants, here. Today, I'm writing about Martin:-

Martin Keogh married Ellen Ryan in St Andrew's church, Westland Row, Dublin city, on 4 September 1871. They had the following children:
  • Jane Keogh was born on 29 July 1872 in Queen's Square, Dublin. She was baptised in St Andrew's church on 2 August. Thomas Keogh was her Godfather.
  • Patrick Thomas Christopher Keogh was born the following year at 18 Summerhill Parade, Dublin. According to the civil registration of his birth, he was born on Christmas eve 1873, but his baptism took place in St Agatha's church on 22 December, and shows his birthday as 18 December 1873. Patrick Keogh of 23 Summerhill, aged two years, was buried in Glasnevin Cemetery in 1876.
  • Martin Keogh was born at 23 Summerhill on 27 November 1875 and was baptised two days later in St Mary's Pro-Cathedral.
  • Jeremiah Keogh was born at 41 Mabbot Street on 17 April 1878 and was baptised in Dublin's Pro-Cathedral on 22 April. He died of whooping cough, at home, on 13 March 1880.
  • Ellen Mary Keogh was born at 41 Mabbot Street on 15 May 1880, according to the civil registration of her birth. However, she was baptised on 12 May in the Pro-Cathedral, giving her birthdate as 6 May 1880.
  • Charlotte Keogh was born at 41 Mabbot Street on 14 February 1882 and baptised in the Pro-Cathedral on 20 February.
  • Patrick Thomas Joseph Keogh was born at 41 Mabbot Street on 8 May 1884 and baptised in the Pro-Cathedral on 12 May.
  • Mary Anne Keogh was born at 41 Mabbot Street on 3 July 1886 and baptised in the Pro-Cathedral on 7 July.

Martin Keogh was a bricklayer by trade, same as his brother Thomas. They both followed in their father's footsteps in this regard. On 20 April 1885, Martin landed a steady job in the Works department of the Guinness Brewery, at St James's Gate in Dublin. The department was part of the engineering function at the Brewery, responsible for all its civil engineering projects.

Martin was likely involved in building key Brewery buildings, maybe even the Guinness Storehouse itself.

Guinness Brewery, St James's Gate, Dublin

Unfortunately, on 10 March 1897, Martin succumbed to the dreaded nineteenth-century killer, phthisis, (a.k.a. tuberculosis). And, tragically, over the next five years the disease would go on to wipe out nearly his entire family.

His wife Ellen died within a year, on 19 January 1898. She had breast cancer. However, phthisis took his son Martin, a compositor by trade, on 14 August 1899, then his daughter Ellen, a school mistress, on 1 April 1900, and his daughter Charlotte on 24 December 1901. Finally, his son Patrick, an apprentice carpenter with the Guinness Brewery, died of phthisis on 16 March 1903. So sad, but at least Martin and Ellen weren't around to witness their demise!

This leaves only the eldest daughter Jane Keogh and the youngest daughter Mary Anne Keogh (or Annie as she was called in the Irish census) unaccounted for. They were together, with their brother Patrick and sister Charlotte, at 51 Dolphin's Barn, Dublin, on 31 March 1901, when the Census was enumerated. Jane worked as a draper's assistant, while Annie attended school. This is the last record of the girls so far found.

Perhaps Jane and Annie Keogh later married and had children to carry forward their DNA signatures, but if they did, they are not yet apparent among our lists of DNA cousins.

If you are related to anyone mentioned here, have any further questions, or have additional information about this family, please contact me at Blackraven.genealogy(at)gmail(dot)com.

Copy marriage register, Martin Keogh and Ellen Ryan, Dublin South, 4 September 1871, Civil records at

Copy birth registers, Jane Keogh, Dublin South, 1872, Group registration ID 9467104; Patrick Keogh, Dublin North, 1874, Group registration ID 8532982; Martin Keogh, Dublin North, 1876, Group registration ID 9193327; Jeremiah Keogh, Dublin North, 1878, Group Registration ID 10469874; Ellen Keogh, Dublin North, 1880, Group Registration ID 8788581; Charlotte Keogh, Dublin North, 1882, Group Registration ID 9238465; Patrick Keogh, Dublin North, 1884, Group Registration ID 10634678, Civil records at

Baptism registers, Jane Keogh, St Andrew's, 1872; Patricus Thomas Christopherus Keogh,St Agatha's, 1873; Martins Keogh, St Mary's Pro-Cathedral, 1875; Jeremias Keogh, St Mary's Pro-Cathedral, 1878; Helena Maria Keogh, St Mary's Pro-Cathedral, 1880; Charlotta Keogh, St Mary's Pro-Cathedral, 1882; Patrick Thomas Joseph Keogh, St Mary's Pro-Cathedral, 1884; Mary Anne Keogh, St Mary's Pro-Cathedral, 1886, Church records at

Burial register index of Glasnevin Cemetery, Patrick Keogh, 23 Summerhill, aged 2 years, 1876, Genealogy at Glasnevin Trust.

Copy death registers, Jeremiah Keogh, Dublin North, Group registration ID 5892022; Martin Keogh, Dublin South, Group registration ID 4172387; Ellen Keogh, Dublin South, 1898, Group registration ID 4248564; Martin Keogh, Dublin South, 1899, Group Registration ID 4355301; Ellen Keogh, Dublin South, 1900 Group Registration ID 4421939; Charlotte Keogh, Dublin South, 1901, Group Registration ID 4526912; Patrick Keogh, Dublin South, 1903, Group Registration ID 4610928, Civil records at

Employee register, Martin Keogh, Genealogy, The Archives, Guinness Storehouse.

Patrick Keogh household, Dolphins Barn, Ushers Quay, Dublin, 1901 Census of Ireland, National Archives.


  1. I'm finding very distant DNA matches (the kind most people do not even bother to look into) who descend from my Luxembourg families. Emigrants from Luxembourg to America. Lines I probably would never have found the connection to without the DNA signature. I'd love to work with Irish and English matches if they'd get in touch. Good luck, Dara.

    1. It's amazing how you can identify even very distant matches if you have a documented family tree. I generally have to be content with identifying 4th cousins, or maybe 4C1R, but it is fun. Thanks Cathy.

  2. I've often thought the same thing, (that families can die out so easily). Especially considering how large some of the families were. Good luck with the Keogh's.

    1. Yes, and sometimes it's even the branch that seems to be doing the best economically.


I'd love to hear your thoughts on this!