Many thanks, this name is clearly shared by many women.

Without revealing too much private information, in 2002 the Judith Diamond I'm looking for was living in London. She is a member of this JewishGen group and keeps a UK email address.
The book's full title is A Latskova Haggadah: The Glück, Epel, Neipris and Nachemson Families and their Descendents in Latskova, Lithuania, and Sweden, Denmark, England, America, and Israel, 1800-2000. London: self-published.

She has also authored Laos (1989) and Solomon Islands (1995).

Jan S. Krogh, Vilnius, Lithuania