John, Are you aware of a French component on these sites? The white, porous paste and green glazing on both sides of bowls sounds very much like some 18th century French pottery that shows up in a number of contexts around colonial North America. **************************************************************************** Patrick E. Martin, Associate Professor of Archaeology Director of Graduate Studies in Industrial Archaeology Editor of IA, the Journal of the Society for Industrial Archaeology Department of Social Sciences, Michigan Technological University 1400 Townsend Drive, Houghton, Michigan 49931-1295 USA Telephone (906) 487-2070 Fax (906) 487-2468 Internet [log in to unmask] ****************************************************************************