Two Irish families, One Australian story

The Clancy and Flaven families in Colonial New South Wales

In the late 1830s and early 1840s, two young Irish couples — strangers to each other but shaped by similar worlds — made the long journey to New South Wales. They arrived from neighbouring counties in southern Ireland, carried by faith, family ties, and the hope of stability in a distant colony.

John Clancy was a native of Fermoy and his wife Mary Casey of nearby Glanworth, both in County Cork. William Flaven came from Cappoquin in County Waterford, and his wife Catherine Lonergan from Burncourt in County Tipperary. Although recorded across three counties, these places lie close together, forming a compact corner of southern Ireland. Within a generation, their children would be united by marriage in a rare double wedding at Concord in 1867.

The Clancys: From Cork to Concord

John Clancy was born in 1811 in Fermoy, County Cork. In December 1836, he married Mary Casey, born in 1814 at nearby Glanworth. Within a short time of their marriage, John and Mary left Ireland and arrived in New South Wales on 16 October 1838 — part of the early wave of Irish Catholic settlers who shaped colonial Sydney well before the gold rushes. They travelled with their first child, Maurice, then just nine months old.

Their expanding family mirrors the geography of early settlement in the colony. Sydney, Camden, Parramatta and Concord all feature as places where their children's births were recorded, reflecting the family’s movement as Sydney grew beyond its original boundaries. Infant loss touched the family early, but most of their children survived to adulthood, forming one of the large, interwoven Catholic families so characteristic of the period.

Two daughters, Bridget and Annie, entered religious life, a reminder of the central role the Church played within Irish Catholic communities. Other children married and raised families across Sydney’s inner west and north shore, firmly embedding the Clancy name in colonial New South Wales.

John Clancy died in 1858 at just 46 years of age, leaving Mary a widow with a young and growing family. She would outlive him by nearly half a century, dying in 1905 aged 91 — a matriarch who lived to see her children married, grandchildren born, and Sydney transformed from a colonial town into a modern city.

The Flavens: From Waterford and Tipperary

Around the same time, another Irish couple was beginning their own Australian chapter. William Flaven was born about 1810 in Cappoquin, County Waterford. His wife, Catherine Lonergan, born about 1817, came from Burncourt in County Tipperary. They arrived in Sydney on 20 October 1841, following a path already taken by many Irish Catholic families seeking opportunity and stability in the colony.

By the mid-1840s, the Flaven children were being born in New South Wales, clear evidence that William and Catherine, like the Clancys, had committed fully to life in their adopted home. Their family grew alongside Sydney itself, shaped by parish life, work, and the steady rhythms of a working-class Catholic household.

As their children reached adulthood, the Flavens became connected to a widening network of colonial families. Marriages into the Callaghan, Johnson and Boulton families extended their ties across Sydney and beyond. Yet two of their children would form the most significant connection of all — one that would permanently link the Flaven family to the Clancys and bring the stories of these two Irish families together.

A Double Wedding, 1867

In 1867, the Clancy and Flaven families were joined in a double wedding at the Catholic Church in Concord.

  • John Clancy married Catherine Mary Teresa Flaven

  • Catherine Teresa Clancy married Maurice William Flaven

Two siblings from one family married two siblings from the other — on the same day, in the same church.

Such events were uncommon, but they speak volumes about trust, shared faith, and close family bonds within Irish Catholic communities. From that moment on, the Clancy and Flaven stories became one.

Why this story matters

This blog exists to tell that shared story — not just as names and dates, but as lives lived across two countries and multiple generations.

It is a story of early Irish migration, Catholic family networks, resilience, loss, and continuity. The 1867 double wedding stands as the symbolic centre of that story — the point where two Irish families became one Australian lineage.

If you are a Clancy, a Flaven, or connected to either family, this is where your story begins.

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