File:Fortress Louisbourg DSC02305 - Back Street (8176261732).jpg

English: This is the street behind the King's Bakery. The lady is beside the Laundry and Stables (left) and the Duhaget House on the right

Robert Tarride Duhaget began his military service in France. By 1723 he was in Île Royale (Cape Breton) where he was made second ensign and 5 years later ensign. Posted to Île Saint-Jean (Prince Edward Island) in 1729 he assumed control of the garrison there when its commander became ill. In 1730 Duhaget became a lieutenant.

From 1731 he served at Louisbourg, then returned to Île Saint-Jean in 1736 as interim commander. In 1739 he was promoted to full captain, with his own company. He led his company in defence of the Queen’s bastion during the siege of Louisbourg in 1745. After the fall of the fortress he was sent to France with the rest of the Île Royale garrison. Early in 1748 he was admitted to the order of Saint-Louis.

After the treaty of Aix-la-Chapelle, the island was restored to France in 1748. Duhaget returned to Île Royale as commander of Port-Toulouse (St Peters) in 1749. In 1750 a mutiny happened, brought on by an altercation between a corporal and the garrison cook about poor food. Duhaget was wounded and had to return to France for treatment.

Not fully recovered he returned to Île Royale in 1751. On 11 July 1753 Duhaget was made major of Louisbourg, he held the post until the autumn of 1757. Because of declining health, he returned to France where he died soon afterwards.