Big Six:

3 ship citations (2 free) in 3 resources
Big Six (Barge)
Journal Sea Chest: The Journal of the Puget Sound Maritime Historical Society (1987-1998; Vols. 20-29)
Published Puget Sound Maritime Historical Society, Seattle,
Page 25: 170
Big Six -- barge
Book The H. W. McCurdy Marine History of the Pacific Northwest
Author Gordon R. Newell, ed.
Published Superior Publishing Company, Seattle,
Page 518
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