Scott--

I can't help you on Revolutionary War saltworks, but it was an extensive
activity during the Civil War in Florida, particularly on the Gulf Coast and
even more particularly in the Panama City area.  There are accounts in
Florida Civil War histories and I can give you one reference on an
examination of a small site on the Gulf:

        Dickinson, Martin F. and George W. Edwardson 1984 The Salt Works of
Salt Island Florida (8Lv133):  A Site Survey and Historical Perspective.
Florida Anthropologist 37(2):63-74.

One historical reference which might be of interest is this older book:

        Lonn, E. 1933 Salt as a Factor in the Confederacy. Walter Neale, New
York.

And this one provides information on the Panama City saltworks:

        Johns, J. E. 1963 Florida During the Civil War.  University of
Florida Press, Gainesville.

I suspect that at small sites, the technology was basically the same as for
the earlier sites--i.e. boil down seawater in big kettles.

                        Lucy Wayne, SouthArc, Inc.