Have you had any success with your Jacobs family? I am also researching Jacobs from Canada/Vermont. My great-grandmother was born Elmira (Almira, Mira) Jacobs, father Joseph, mother Mary. She married my G-grandfather, Seneca Page Wilkinson in Righford, Vermont where I believe her family was living, in 1894. Seneca Page was born in Quebec, and lived in Sweetsburg/Cowansville until he died.
I haven't been able to track down a birth record for Mira, either in Quebec, or Vermont, and Joseph Jacobs (or Jacob) is such a common name it has me running in circles.