Source: Annual Report of the Board of Police Commissioners of the City of St. Louis, 1872-1945 (incomplete run)
Location: St.L. / 352.2 / Sa2
Last Name:Lang
First Name:John
Remarks:in list of the commissioned officers, in the order of their rank and seniority, dating from their last promotion
Report:14th Annual Report, Year Ending April 13, 1875
Page:16