Rhoslyn Denten was born in the small town of Blair Atholl, Scotland. Her parents Harrison & Haliey (Lippencot) Denton owned the local muggle pub and were completely unprepared for a magical daughter. As soon as Rhos was accepted into school they broke almost all contact gladly allowing the girl to spend her summer holidays at the home of her best friend Lettie Glass.
The girls had free range of Lettie's parents Glass Shop and the small New England town every summer until they finished school, but more importantly they worked as a team during the year. They never made prefect or the quiditch team, but their adventures were well worth what they did to their grades.
Early in her sixth year Rhoslyn met Dakota, in a random attempt to keep a fellow trouble maker out of detention. She refused to be his girlfriend on the basis that he was a child, and in return he set about stealing her heart. By the time she headed back for the US after school to work at the Glassworks she was certain she'd never marry another man.
By spring of '87 they had stashed away enough money to open their own wand shop. Deciding to stay close to her friend the young couple moved to Stone Ranch Texas and started their family. It took almost 5 years for the twins to arrive, but William and Addison were enough to convince their parents that two was enough for now.
Only this summer when Addison came home for the last holiday before finishing school she announced her desire to take over the shop instead of returning to take her NEWTS. Leaving her in the capable hands or our assistant I decided to follow my husband back to the school we grew up in and help teach the next generation.
http://www.hp-lexicon.info/magic/potions-enc.html
and other less used sources