Re grenades
Have there been any ceramic hand-grenades found in the US (besides those from
wrecks). These were common in the first half of the C17 in Europe. They are
generally thick and globular, about 4-5 ins in diameter,  with a hole for
inserting a wooden fusee (a tube for a charge of fine powder). They were
generally in earthenware but there are apparently some in french stoneware
from a wreck off Alderney c.1600. See Post-med Archaeology 1992 for some
illustrated examples. Perhaps no one has recognised them?
Paul Courtney, Leicester, UK
 
Dan Mouer wrote
I know this doesn't help answer your question, but you'll get a kick of
it. In May 1677 the estate of NathanielBacon, Jr., of Curles Plantation in
Henrico County, Va., was inventoried in detail. Bacon had died during a
rebellion against the government which he had led, and the property was
seized and an inventory made. In the one of te principal rooms of Bacon's
house, along with the paintings, fine mahogany table, numerous chairsm and
fine turkey carpet, there was "a basket of handgrenades with iron shells
loaden and fitted." Nice decorator touch.