Beginning in 1989, O'Callaghan was based in the Solomon Islands for 25 years. Her long-term residence in the region deepened her understanding of Pacific affairs and informed much of her reporting. Her husband, Joses Tuhanuku, is a prominent Solomon Islander politician and trade unionist. The couple has four children.
In addition to her journalism, O'Callaghan served as a public affairs manager for the Regional Assistance Mission to Solomon Islands (RAMSI), contributing her media expertise to the multinational peacekeeping initiative that supported the restoration of stability in the country.
Mary Louise O'Callaghan currently serves as CEO Media Advisor at World Vision Australia. In this role, she leverages her extensive experience in journalism and public communication to support the organization’s humanitarian mission. Her career reflects a longstanding commitment to social justice, informed journalism, and advocacy in the Asia-Pacific region.
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