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Merchant and agency firm, of Calcutta
1847 Established by William Mackinnon
Mackinnon's business empire extended beyond India to Australia, the Middle East and East Africa.
He also set up agency firms at strategic ports (Gray, Dawes and Co in London; Gray, Mackenzie and Co and Gray, Paul and Co in the Persian Gulf; and Smith, Mackenzie and Co in Zanzibar) to handle the passenger and merchandise cargo carried alongside the Royal Mail.
1874 James Lyle Mackay joined the firm, and became a partner by the 1890s.