Id Url Resource class Title Description Source https://policing.umhistorylabs.lsa.umich.edu/s/detroitunderfire/item/2253 Update on the Actions of the Ad-Hoc Action Group Ad-Hoc Action Group, “Update,” June 12, 1968, Folder 21, Box 3, Kenneth V. and Sheila M. Cockrel Collection, Walter P. Reuther Library, Archives of Labor and Urban Affairs, Wayne State University