Mary Jane Thuersam, age 87, of 1506 S. 15th Street, Quincy, formerly of 669 Christiana Street, N. Tonawanda, N.Y., died on Sunday, May 3, 2009 at 2:40 p.m. in her home. She was born on June 1, 1921 in North Tonawanda, N.Y., the daughter of Herman and Amanda (Salow) Kuglin. She married Kennard Thuersam on June 29, 1947 in North Tonawanda. In 1978, Kennard…