Sidionia Hellerman Sidionia C. Roose Hellerman, 89, of Avalon, wife of the late Allen A. Hellerman, died Tuesday, April 13, 2010. She is survived by three children, Edward P. Hellerman and his wife Marcia, Marie E. Griffin and her husband Harry and Allen B. Hellerman and his wife Barbara; her brother, Richard Roose; 10 grandchildren; and 23 great-grandchildren. She was preceded in death by four siblings, Benjamin, John and Joseph Roose and Margaret Bordt.