Just had a breakthrough in my research and found Maria Isabell of Cornwall, England is my great-great-great-great grandmother. Maria married Joseph Vincent in Truro, Cornwall in 1848. My line then descends to Laura Vincent-Devonshire, Sarah Jane Isabell Devonshire-Pearce to Jessie Pearce Rodda. I am interested in knowing more about the English Isabell's, especially about the name (does not sound very British?) If anyone has any information to help, I would greatly appreciate it.