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In page Spouse or partner of the prime minister of Australia:

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Until the 1960s, it was uncommon for the spouse of a prime minister to have their own career. Zara Holt, a fashion designer, was the first to continue her career during her husband's term in office, and reputedly earned more money than him. Other businesswomen to hold the position have included Thérèse Rein, who ran an employment services company, and Margie Abbott, who ran a childcare centre. Bettina Gorton was an academic who lectured part-time at the Australian National University.[citation needed]