 The Archdiocese of Detroit Archives, and the IHM chronicles seem to accept 1921 as the date Sacred Heart School was established.In 1928 a ninth grade was added, in 1930 and 1931 10th and 11th grades were added respectively.The school remained at grades 1 through 11 until 1936 when the impact of global depression forced the elimination of the secondary (high school) grades.