The Blackwood Family

Origins: Portsmouth to Sydney

The Blackwood family's recorded history began with Percival Erasmus Blackwood, a textile merchant in Portsmouth, Hampshire, whose son Erasmus Percival Blackwood was born on 14 February 1780. Educated at Portsmouth Grammar School, Winchester College, and Magdalen College, Oxford, Erasmus married Margaret Smithson of Alresford in 1805 and emigrated to Sydney with his family in 1815. He founded Blackwood Enterprises in 1816, building one of colonial New South Wales' most profitable wool and shipping concerns. A man of formidable commercial energy, he died at his desk on 20 December 1850, aged seventy — establishing, inadvertently, the pattern of institutional consumption that would define the family's male line for generations to come.

Margaret Blackwood, née Smithson, sustained the household and raised three children to adulthood: Thomas Erasmus (born 1812), Elizabeth Anne (born 1816), and Henry Jonathan (born 1820). She died in 1854, having outlived her husband by four years and having provided, through her domestic management and cultural leadership, the foundation upon which the family's colonial reputation rested.

The Legal Dynasty: Tasmania

Thomas Erasmus Blackwood, educated at Winchester College and Balliol College, Oxford, married Emily Eleanor Harrington in 1843 and relocated the family's centre of gravity from Sydney to Hobart, where he founded the law firm Blackwood and Associates in 1866. The firm became one of Tasmania's most respected legal institutions, its leadership passing from Thomas Erasmus to his eldest son Robert Cornelius Blackwood, who managed the practice for five decades.

Robert married Clara Winifred Johnson of Launceston in 1870 and raised a family whose members extended the Blackwood name across professional and geographic boundaries. His son Thomas Alastair Blackwood assumed the managing partnership and sustained the firm through Federation, the Great War, and the early Depression before collapsing at his desk on 30 March 1930, aged fifty-eight — an echo of his great-grandfather Erasmus Percival's death that the family registered with the particular horror of a pattern confirmed. Thomas Alastair's death marked the end of the Blackwood legal dynasty. Neither of his sons entered the law.

Robert's daughter Evelyn Rose Blackwood married the engineer George Nathaniel Parker, became headmistress of Hobart Ladies' College, and campaigned for women's suffrage — extending the family's institutional influence into education and social reform.

Thomas Erasmus's other children pursued their own paths. Elizabeth Anne Parker, née Blackwood, became a published writer and social commentator in Sydney. Henry Jonathan Blackwood practised commercial law and served on the New South Wales Legislative Council, dying in 1922 at the extraordinary age of one hundred and two — the last living connection to the family's colonial origins.

The Medical Turn

Thomas Alastair Blackwood married Mary Eleanor Thompson, the daughter of a Hobart banker, in 1901. Mary named their elder son Prometheus — the fire-bringer — a declaration of ambition that proved more prophetic than either parent intended. Alastair Prometheus Blackwood, born in 1910, demonstrated from childhood an intelligence that exceeded the family's established range, and his departure from the legal tradition into medicine represented not merely a change of profession but a change of scale. His younger brother Edward Thomas Blackwood followed him into medicine, practising as a thoracic surgeon in Sydney and later Brisbane, where he died of a myocardial infarction in 1970 at the age of fifty-seven.

Edward's son Alexander Edward Blackwood, born in wartime Brisbane in 1942, became one of Australia's most distinguished cardiologists, pioneering cardiac rehabilitation programmes and minimally invasive surgical techniques across a career spanning six decades. Alexander married twice — first to the historian Victoria Hawthorne, with whom he had a son, Sebastian Charles Blackwood, and subsequently to the paediatric cardiologist Alice Jane Thompson, with whom he had a daughter, Sienna Alice Blackwood.

Obsidian

Alastair Prometheus Blackwood founded the Obsidian Healthcare Group in Melbourne in 1938, creating an institution whose medical achievements were genuine and whose deeper operations generated questions that the organisation's structure was designed to prevent anyone from answering. His career bridged conventional medical practice and research whose theoretical foundations — concerning the neurological basis of identity, the mechanisms of memory encoding and transmission, and the possibility that biological memory operated at cellular and subcellular levels — exceeded what the scientific establishment of his era could assess or accommodate.

He married Margaret Helen Stevenson, the daughter of a Melbourne financier, in 1935. Their son Maxwell Alastair Blackwood was groomed from childhood for institutional succession, educated at Scotch College, the University of Melbourne, and the London School of Economics, and installed as Obsidian's Chief Executive in 1971. Maxwell died suddenly and without adequate explanation in Sydney on 3 May 1974, at the age of thirty-three. Their daughter Victoria Evelyn Blackwood left Melbourne after her brother's death and built a career in education advocacy in Tasmania.

Alastair himself died on 30 September 1985 at his Daylesford estate. No post-mortem was conducted. His estate passed to the Obsidian Historical Trust. The coded journals he maintained throughout his career were never publicly released.

Obsidian's leadership passed through a period of institutional management following Maxwell's death and Alastair's withdrawal, before Sebastian Charles Blackwood — Alexander's son, and thus a member of the Edward branch rather than the Alastair branch of the family — assumed the Chief Executive role in 2010. Maxwell's daughter, Evelyn Rose Whitmore née Blackwood, served as Director of Public Health Initiatives within the organisation, her presence within the institution her mother had spent decades maintaining a careful distance from constituting one of the family's more quietly significant choices.

The Two Branches

The Blackwood family's modern history divided, following the generation of Alastair and Edward, into two distinct branches whose relationship to Obsidian Healthcare Group defined their respective characters.

The Alastair branch — Maxwell, his wife Evelyn Rose Harris, their daughter Evelyn Rose Whitmore, and the peripheral figure of Victoria Evelyn — was the branch whose proximity to Obsidian's deeper operations produced the family's most disturbing outcomes: Maxwell's unexplained death, Alastair's mysterious final years, Margaret's lifelong silence, and the questions that none of these events resolved.

The Edward branch — Edward himself, his wife Laura Carter, their son Alexander, and Alexander's children Sebastian and Sienna — maintained a relationship with Obsidian that was consultative rather than foundational. Alexander's decade of consultancy (2000–2009) ended in departure over irreconcilable differences about transparency. Sebastian's assumption of the Chief Executive role in 2010 reconnected the Edward branch to the institution that the Alastair branch had built and been consumed by, raising questions about whether the reconnection represented the family's capacity for institutional reform or its inability to escape institutional gravity.

Patterns

The Blackwood family's history was characterised by patterns whose recurrence across generations suggested forces more durable than coincidence and less deterministic than inheritance. The men built institutions and were consumed by them — Erasmus Percival at his desk, Thomas Alastair on his office floor, Edward in his garden, Maxwell in circumstances that no one explained. The women sustained the households that the institutions required — Margaret Smithson, Emily Eleanor Harrington, Clara Winifred Johnson, Mary Eleanor Thompson, Laura Elizabeth Carter — each generation providing the emotional infrastructure that allowed the men to maintain the fiction that professional achievement was a self-sustaining enterprise.

The pattern broke, partially, in the later generations. Alexander survived into his eighties — the first Blackwood man in four generations not to die at his desk or in his fifties. Alice Jane Thompson challenged the family's emotional avoidance with a directness that no previous Blackwood wife had attempted. Victoria Evelyn Blackwood left the institutional orbit entirely. Sienna Alice Blackwood entered law enforcement rather than medicine or law, applying the family's analytical rigour to a discipline the dynasty had not previously encompassed.

Whether the breaks represented genuine change or merely variations within a pattern whose deeper structure remained intact was a question the family's history posed without resolving — the Blackwood talent for building institutions that outlasted the people who built them expressing itself, across two centuries and seven generations, as the dynasty's most durable and most costly achievement.