SIEK, Marie D. (Olsson) Of Wellesley, Sept. 19. Beloved wife of the late Ralph W. Siek. Loving mother of Michael Devine of Burlington, VT, John Devine of Fitchburg, Lawrence Devine of KS, Diane Pierce of Wellesley and William Siek of Charlotte, NC. Also survived by 8 grandchildren and several great-grandchildren. Services private. Expressions of sympathy may be made in Marie's memory to the Alzheimer's Association , 480 Pleasant St., Watertown, MA 02472.