Théotime Blanchard House was erected in 1870 on St-Pierre-Ouest Boulevard in Caraquet. It exhibits Picturesque vernacular architecture, a preferred style among 19th-century Acadians. This style can be seen in the symmetrical rectangular massing, the cedar shingle siding, and the steeply gabled roof. In 2006, the house underwent a renovation.

The house's first occupant was Théotime Blanchard, a prominent Acadian politician in late 19th-century New Brunswick. In 1870, Mr. Blanchard was elected to the Legislative Assembly of New Brunswick. In office, he headed the opposition to the Common Schools Act of 1871. The act, which would later pass, would replace the contemporary church-run schools with government-controlled "common" schools, a move opposed by the Roman Catholic Church, which Blanchard was a member of. Blanchard resigned from the Legislative Assembly in 1876. In 1894, he was the first Acadian from Gloucester County to be elected as a Member of Parliament. He left politics after exiting the position in 1904.

Outside of politics, Mr. Blanchard was a civil servant, businessman, and teacher, having worked at the village school prior to his time with the Legislative Assembly. He was killed in a car accident in 1911 at age 66.