STRAFFORD - Margaret Justine (Riddervold) Leighton, 86, died Sept. 22, 2009, at Hyder Hospice House from complications of heart disease.The daughter of James Trygve Riddervold and Margaret Elizabeth Barringer Riddervold, she was born Oct. 28, 1922, in Oslo, Norway. Her Norwegian father and American mother brought her to the United States as an infant, living in Cambridge and Texas, before settling into her beloved hometown of Concord. There she attended elementary and high school, graduating from Concord High, class of 1941.Beginning in high school, Justine was an accomplished artist and was active in theater, both as an actor and set designer. In 1978, she was a founding director of the Lakeside Players in her hometown of Bow Lake, Strafford. Through more than 20 years of involvement with the Lakeside Players, she participated in countless plays and musical programs, serving in the roles of director, actor, stage manager and most notably, as a gifted set designer and art director.An accomplished pianist...