Source: Annual Report of the Board of Police Commissioners of the City of St. Louis, 1870-1892 (incomplete run). In The Mayor's Message: With Accompanying Documents, to the City Council of the City of St. Louis. Location: St.L / 352 / Sa2m
Last Name:	O'Sullivan
First Name:	John
Remarks:	in list of captains and sergeants, district they serve in, date of appointment on the force, nationality, seniority, and date of promotion
Report:	Annual Report, Year Ending, April 12, 1880, in "The Mayor's Message," May Session 1880
Page:	472