| 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 | |
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| Last Name: | O'Brien |
| First Name: | M. |
| Middle Name: | J. |
| Age: | 22 |
| Remarks: | in list of appointments made during the year |
| Report: | 34th Annual Report, Year Ending April 8, 1895 |
| Page: | 580 |
