Mona Woolwine refills an urn for Sue Horgan. A third-generation participant, Woolwine first volunteered for Tea Tent duty at age 12. Now she's brewmaster of the tea and keeper of the kitchen. and today is in charge of brewing tea from two kettles boiling on a small gas range behind the ornamental screen. In her grandmother's day, "they had to split their own wood," Woolwine said.