1860 US Census, Aroostook County: Census statistics for Township Letter L, now know as Cyr Plantation.
Acadian Genealogy: From France to the Cyr Plantation: Timeline and history of the Acadians arrival in the Madawaska area. Also includes information about the Cyr family and their settlement of Cyr Plantation.
History of Cyr Plantation: Brief historical description, census information, and links available.
Plantation of Cyr: Provides brief history, facts, address, and list of town officials.