He was born at Château-Richer, Quebec in 1785. He studied at the Petit Séminaire de Québec and later became a notary. During the War of 1812, he was a lieutenant in the Quebec City militia, later becoming captain. He represented Quebec County in the Legislative Assembly of Lower Canada from 1833 to 1838. He supported the Ninety-Two Resolutions, but preferred working through legal channels to rebellion. So, the British government saw him as a rebel, while the Parti patriote resented his moderate stance. In 1845, he retired to a large estate that he had purchased in Bytown. He subdivided this property and sold off building lots; this area is now the Ottawa neighbourhood of Sandy Hill. Besserer Street in this area was named after him.
He died at Ottawa in 1861.
- "Biography". Dictionnaire des parlementaires du Québec de 1792 à nos jours (in French). National Assembly of Quebec.
- "Louis-Théodore Besserer". Dictionary of Canadian Biography (online ed.). University of Toronto Press. 1979–2016.