Federal Commerce & Navigation was formed in 1944 and merged into Fednav in 1984. Registers apparently show a reconstituted Federal Commerce & Navigation (1974). Its subsidiaries included Burnett Steamship, through which Chapman & Willan was acquired in 1975, or 1974 in other sources, and Federal Offshore Services. It also joined the Arctic Transportation consortium formed in 1973.
Canada, Toronto and later Montreal.
Keep the explicit scope label independent; no alias or company identity is inferred.