Alison, try this address
BELL HOMESTEAD ADN HENSERSON HOME
1, Sherwood Drive
Brantford, (Ontario)
Canada
N3T 1W3
Tel: (519) 756-6220 Fax: (519) 759-5975
Brian Studier, curator (as per 1994 CMA directory)
Collection: family home of Alexander Graham Bell, telephone technology,
and Bell family possessions.
Maybe someone there will be able to help you.
Regards,
Marie-Josee Lebel