Mary O'Shiell (1715 – d. after 1745), was a French shipowner and slave trader. She is a known figure in the history of Nantes, alongside her sisters Agnés...

O'Shiell (1677–1745) and Agnès Vanasse, and the sister of Mary O'Shiell and Agnès O'Shiell. Her family and their manor Manoir de la Placelière were the...

businessman Antoine Walsh (1703 – 1763) - shipowner and slave trader Mary O'Shiell (1715-1745) - shipowner and slave trader. Richard Hennessy (1724-1800)...

and Saint-Domingue; sugar and tobacco for Europe. In 1741 he married Mary O'Shiell, a French-Irish businesswoman in Nantes in France, where she is a known...