Reference

Louis Lacoste was an active figure in the Legislative Assembly of the Province of Canada, particularly known for his political involvement and contributions. He was elected as a representative for Chambly in an 1843 by-election and was reelected in 1844. Lacoste's role in the legislative assembly was marked by his participation in debates and his efforts in representing his constituency. Although he chose not to run for reelection in 1848, his tenure was noted for his active engagement source.

In addition to his legislative work, Louis Lacoste was involved in political activism. This included efforts like submitting petitions to the Legislative Assembly alongside colleagues such as Nicolas-Benjamin Doucet, demonstrating his commitment to addressing the grievances and needs of his constituents and the broader community source.