I just went on the Laboucane Ancestry site and saw your very old email from 2005. There is a Lawrence Laboucane and son, Dennis living in Elk Point, Alberta. Dennis is managing the DOMO gas station. I do not know if this is the Lawrence you are looking for or if you have already found them. Anyway, for your information. After I typed this, I reread your message and you are looking for your great grandfather, not Lawrence.