Hi Sue - here are two address for your copyright search!
Rosalyn Rubenstein
Principal
Rubenstein & Associates
44 Patterson Avenue, Unit 1
Ottawa Ontario
K1S 1Y1
Deborah Doxtator
852 Kipps Lane, Apt 104
London, Ontario
N5Y 4S3
What are you producing? Many of these sound very familiar!
Best wishes,
Joy Davis
604 477 0072