 Students who entered the program as 6th graders in August 2003 comprised the school's first class of graduating high school seniors in June 2010.The K-6 Thea Bowman Leadership Academy occupies the building that once housed Holy Angels School, a Roman Catholic school associated with the adjacent Cathedral of the Holy Angels, which is the mother church of the Roman Catholic Diocese of Gary.The current building opened in 1966 as Holy Angels School, and was renamed in 1994 as Sister Thea Bowman School, but was ultimately closed in 2002 by the diocese though the current school is in no way affiliated with the Cathedral and diocese.