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- J.B. Harkin [commissioner] 3
- Canadian National Railways 1
- Groves, Naomi Jackson 1
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- Keith, Harold C 1
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- Kimball, Grant Miss 1
- Kimball, June 1
- MacGregor, James G 1
- McMaster University (Hamilton, Ontario). Dept. of Geography. Karst Research Group 1
- Reader's Digest 1
- Scharff, Robert 1