Sweetest Heart of Mary on Canfield in Detroit was the site of Mass Mob IV on July 13, 2014. Over 1800 souls attended and 150-200 of those stood.
The parish's Golden Jubilee book from 1940 is now on-line and can be found by clicking here.
Sweetest Heart had both a grade school and a high school. The grade school had as many as 1875 students during the 1920-21 school year. The high school started later, and had only been open for 2 years as of 1940. The Diamond Jubilee book published in 1965 spoke of the future of Sweetest Heart's schools with uncertainty. The high school closed in 1966, and the grade school closed in 1975.
Much of the book is in Polish.
The church is now part of Mother of Divine Mercy parish, along with St. Josaphat and St. Joseph (site of Mass Mob 3).
Sweetest Heart of Mary Teaching Staff-Sisters of St. Joseph 1965