In previous times, barbers (known as barber surgeons) also performed surgery and dentistry. Barber-surgeons began to form powerful guilds such as the Worshipful Company of Barbers in London. Barbershops from black barbers at first mostly served wealthy caucasians. Many of them worked in various trades including barbers, fan operators and shopkeepers. Carpenters, hat-makers, barbers and watchmakers served their own community and guests. Most Turks work as barbers, engineers, businessmen and doctors. From then, physicians were clearly separated from the surgeons and barbers. He observed that among its members are barbers, bricklayers, mechanics and fruit sellers. They no longer perform haircuts, a task the barbers have retained. Olga's group had their hair shorn by inmate barbers. In Paris, disputes between doctors led to the widespread patronage of barbers. Initially, Sarah learned about hair care from her brothers, who were barbers in St. Louis. Seven of the personnel killed were support staff, including cooks and barbers. Guild barbers were trained to do complex surgeries. Women had their hair cut off by the "Sonderkommando" barbers.