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Bowman, Frederic E. 4
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F. E. Bowman & Company 4
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Marshall, James I. 3
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Wallwork, Carl H. 3
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Morgan, William L. 2
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Claussen and Claussen 1
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Claussen, H. Fred 1
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Claussen, William E. 1
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Dezendorf, O. M. 1
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Lawrence, Ellis Fuller 1
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MacNaughton, Ernest B. 1
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Rasmussen, Eric M. 1
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Raymond, Herbert E. 1