Many years back, before I started doing research on the family, I met a great uncle by name of Daniel Lavigne (dead many years now). He lived in Dorval, Quebec, & was owner or part owner of a venetian blind company in Dorval, or close-by. He was the son of Antoine Lavigne & Lucy Seguin. He told me that the family was called Tessier-Lavigne in the past, with some members continuing the line by one or the other name, but not the combined name. The family lived in Dorval for many years. Could anyone give me any information on this family, or about the business he owned? He had at least one son (Dan?) & one daughter. Relatives who would have been able to help me have long since past away.