Concord High School class of 1990 is seeking alumni for its 20-year reunion to be held at the Red Blazer, 72 Manchester St., on Aug. 7 from 5 to 11 p.m. For more information, e-mail tonimilne@yahoo.com or find the class's Facebook group by typing in "Concord High School (Concord, NH) Class of 1990." 0