Describes and illustrates 27 brachiopods, eight of which are new, from the lower shale member of Williams Island Formation sampled at the northeast bank of the Albany River, an unnamed island on the Abitibi River, and the south end of Mid-Bay Shoal in Hudson Bay. The report describes previous work conducted in the area and the quality of fossil material and problems of dating; the stratigraphy and biostratigraphy; brachiopod facies, communities, provincialism and paleogeography; and the systematic palaeontology.