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| Thomas M. Nairn, First Reeve of Aylmer, 1872-1877, 1879, MPP for East Elgin, June 1879-February 1883, December 1886-April 1890. |
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Samuel Clutton, Reeve, 1884-1886, First Mayor of Aylmer, 1887, Elgin County Warden, 1885. |
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| Moses Leeson, Reeve, 1888 and 1892, Mayor, 1893-1894. |
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George M. Smith, Reeve, 1889-1890. |
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| Jeremiah Huffman, Reeve, 1891, 1893-1894; Mayor, 1895. |
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Oscar McKenney, Reeve, 1895-1906, 1911-1920, 1922-1931; Elgin County Warden, 1899. |
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| David Marshall, MP for Elgin East, 1906-1920. |
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John R. Summers, Reeve, 1907-1910, Elgin County Warden, 1909. |
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| E.S. Livermore, Reeve, 1932-1934; Elgin County Warden, 1934. |
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E.E Atkinson, Reeve, 1935-1948, 1957-1958; Elgin County Warden, 1943. |
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| John Millard, Reeve, 1949-1950, 1959-1960. |
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W.R Gifford, Reeve, 1951. |
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| Kenneth M. Williamson, Reeve, 1952-1956; Elgin County Warden, 1954. |
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Russell McKibbin, Reeve, 1961-1964; Warden, 1964; Mayor, 1965-1970. |
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| Sydney J. Glover, Reeve, 1965-1966, 1981-1982, Warden, 1979. |
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Forrest Moore, Reeve, 1967-1970; Mayor, 1971-1982. |
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| Arthur T. Miskelly, Reeve, 1971-1974. |
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Stewart R. McBrien, Reeve, 1975-1980. |
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| Robert G. Brooks, Reeve, 1983-1985. |
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Donald H. Pearson, Reeve, 1986-1988; Mayor, 1989-1994. |
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| Douglas J. Avram, Reeve, 1989-1991. |
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Roger Vandierendonck, Reeve, 1992-1994; Elgin County Warden, 1993. |
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| Thomas J. Cunniffe, Reeve, 1995-1997. |
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Robert C. Habkirk, Mayor, 1995-2003, 2007-2010. |
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| Paul Baldwin, Mayor, 2004-2006; Elgin County Warden, 2006. |
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Jack Couckuyt, Mayor, 2011-2014. |
