Initially, Joshua Mauger conducted business in Louisburg, Nova Scotia, but after the French regained control in 1749, he shifted his operations to Halifax.

"[4] In 1754, Mauger established shops at Pisiguit, Windsor, New Minas, Horton, and other places where he traded goods and spirits to the French and Native peoples.

Mauger, the agent victualler, was accused by the government of secretly turning Halifax into a storage point for Louisburg goods while illicitly trading.

[6] Around 1761, after returning to England, the merchant served as the Nova Scotia Assembly's agent in London, only to resign the following year when he secured a parliamentary seat in Britain.

[6] In 1764, Captain Francis Peabody set up the township known as Maugerville in Sudbury County, New Brunswick, where he established a community of about 400 English settlers, mostly colonists from Massachusetts.

[7] Through the efforts of Joshua Mauger, who had influence and great interest in the new county formed on the banks of the Saint John River, the area was secured for the earlier settlers.