| 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: | McMahon |
| First Name: | Michael |
| Remarks: | in list of appointments made during the year; in list of resignations submitted during the year |
| Report: | 33rd Annual Report, Year Ending April 9, 1894 |
| Page: | 548, 550 |
