Graham Henningson Showroom SpecialistWelcome to your Pella Showroom in Woburn. Graham Henningson our showroom specialist will be helping you today! Originally from Northborough, Massachusetts Graham attended high school at Algonquin Regional. Following his graduation he went on to study Psychology at Northeastern University. Prior to Graham’s hiring at Pella he worked in outside sales. He is the newest member of our team, starting in early January of 2017. Graham’s fresh point of view will help bring a new perspective to your window and door project. Back to Meet our Pella Woburn staff!