ray, i am not sure how it happened but somehow down the line our name started as barteau then was changed to barto and some took up the name spelled berto. i have searched back as far as lucien warren berto from vermont and they migrated in through canada from france. it is so hard to find any information as to why they changed it but the older relatives have said it was changed from barteau to the present spelling..we are a mixed up group to say the least