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| 1957 | 1958 | 1959 | 1960 | 1961 | |||||
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Bill Perfetti Macedon, New York, USA |
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Bruno Pratt France |
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Greg Staples Spokane, Washington, USA |
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Gary Runkel |  |
Bernard Sherin |
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Randall Colgan St. Albert, Alberta, Canada |
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Geoff Stokes and Ruth Archer Rayleigh Essex England |
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