For those interested in the history an heritage of Catholic education in Detroit, and with the Catholic Alumni Lawyer Heritage Dinner coming up on Tuesday, November 15 (it's not too late to attend, see link), I have attached below a list of Detroit area Catholic High Schools have been closed over the years, with the year of the school's closing. A long and depressing list to be sure, but not comprehensive.
Tom Calcatera, a lawyer whose office is right next to mine attended St. David High School in Detroit (Go, Aviators!) until it closed after his Junior year. He finished at Bishop Gallagher High, also closed. St. David did not make the list.
A link to a more readable list of the closed, and opened high schools can be found here.