found: McNicoll, Sylvia. Grave secrets, 1999:t.p. (Sylvia McNicoll) t.p. verso, Can. CIP (McNicoll, Sylvia, 1954-)
found: Wikipedia, Jan. 27, 2017(Sylvia McNicoll (born 1954) is a Canadian children's writer who lives in Burlington, Ontario. McNicoll was born in Ajax, Ontario)
found: The diamond mistake mystery, 2019:CIP title page (Sylvia McNicoll) LAC CIP application (Canadian)
found: LAC internal file, February 25, 2019(heading: McNicoll, Sylvia, 1954-; variant: Sylvia Marilyn McNicoll; usage: Sylvia McNicoll; born September 30, 1954; Canadian)
