Brooklyn Dig's Clue to Maryland 400's Resting Place.

Sounds very theoretical.
"More than two centuries after one of the bloodiest battles of the American Revolution, archaeologists are digging up a concrete lot in Brooklyn, N.Y., to settle a mystery over the mass grave of famed Maryland soldiers.
Known as the Maryland 400, the soldiers’ stand on the battlefield in 1776 earned Maryland the distinction of the “Old Line State.” The young men from Baltimore, Annapolis and beyond died while stopping the British from quashing America’s rebellion just as it began.
New York City bought the vacant lot at 9th Street and 3rd Avenue long presumed to conceal the Marylanders’ bones. The city plans to build a pre-kindergarten school on the grounds. Preservationists requested an archaeological investigation before construction begins.
“They played a major role in saving the American Revolution,” said Bob Furman, an author and president of the Brooklyn Preservation Council. “They deserve better than what they have gotten.”
What they have gotten, Furman says, is an undignified resting place. He spent years gathering records — deeds, maps, newspaper articles and letters — that suggest the Marylanders’ remains may lie beneath the lot beside an American Legion post.
New York State officials acknowledged the site when they hung the placard next door to it in 1952: “Here lie buried 256 Maryland soldiers who fell in the Battle of Brooklyn.” Half a century later, they installed a second sign that designates the lot a “presumed” burial ground."
Dig in Brooklyn may settle mystery of lost grave of famed Maryland 400 soldiers from Revolutionary War