I understand that my 9th great grandmother, Rebecca Chamberlain (Shelley) was convicted of witchcraft and was jailed in Cambridge. She died in prison in Cambridge. Being a far removed Canadian could someone please advise where I would find a written record of this and preferably somewhere on the internet. I was told that this is written about in Hazen's "History of Billerica" but I do not have access to the library there. Tks for any help Paul Plante