Hey there, I'll see if I can explain my thoughts shortly, though they would be expanded upon in his history.
Louise Morel was a witch born to a low-class couple living in Viennimont. Her mother ran a clothing shop which never seemed to get its feet off the ground, which Louise helped with when she was a young girl. She learned to knit and sew, and though it took her much longer, she eventually grew to be able to stitch clothing together, which over time became better and better. After leaving home she settled in nearby Bordeaux, eventually marrying a Muggle man and having a family. She stayed settled for a good number of years, until the death of her husband in 1947. With her kids having long left to settle down with families of their own, and her not wanting to stay in the home she shared with him, she decided to move back to Viennimont, to her old family home inherited when her parents passed, due to having relatively pleasant childhood memories there. She started her mother's shop back up, hiring witches to make the clothing as her skills got slower as time took its toll; possible only because of her small wealth from her shop in Bordeaux.
Or that's how I imagined it. If that's not acceptable or you're not comfortable with it I'll just scrap it, no big deal.