Career
He represented Kamouraska in the Legislative Assembly of Quebec from 1890 to 1897 as a Conservative. He was also known as Charles-Alfred Roy dit Desjardins. He was born in Kamouraska, Canada East, the son of Joseph Roy dit Desjardins and Rose Ouellet, and was educated there.
He first worked as a navigator like his father, then purchased a clock factory that he converted to manufacture agricultural equipment.
He later became involved in the production of automobiles. Desjardin was postmaster and telegraph operator at Saint-André from 1884 to 1913.
He built and operated aqueducts at Saint-André and Cabano, as well as the telephone system at Kamouraska. Desjardins was an unsuccessful candidate for a seat in the Quebec assembly in 1886.
He was named a Commander in the Order of Saint Gregory the Great.
Desjardins died in Saint-André at the age of 88.