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:	Crocker
First Name:	J.
Middle Name:	P.
Last Name, Alternate Spelling:	Crooker
Remarks:	patrolmen promoted to rank of sergeant
Report:	Annual Report, April 1, 1870, In "The Mayor's Message," May Session 1870
Page:	233