Three cadaver-sniffing dogs independently zeroed in on three sites that most likely were used to bury British dead, except for Parker, whose body was returned to England for interment, with the eulogy delivered by his first cousin, Lord Byron. Those sites will not be touched, Schablitsky said.

Her next step is to put all the pieces together and develop a story line for the battle. Her findings will be peer-reviewed before release.

The owners of Tulip Forest Farm donated the artifacts to the state. Once cataloged, the items will be sent to the Maryland Archaeological Conservation Laboratory in St. Mary's County for evaluation, further cleaning and storage. They will be displayed, made available for researchers and could tour Maryland museums during 2014, the climax of the bicentennial celebration.

Pencek said the commission and Schablitsky will evaluate the dig and work with the property owners to ensure the battlefield remains an untouched resource.

"Everything costs money," Pencek said. "We have expended the federal funding and will need to look for other sources."

One of those sources is the 2012 Star-Spangled Banner commemorative coins. Of the 600,000 pieces authorized by the U.S. Mint, 230,000 have been sold. Sales will end on Dec. 17, at which time the commission hopes to have netted $3 million.

"The funds generated go to help preserve sites like Caulk's Field, so we hope there's a final holiday sales push," Pencek said. "If every coin is sold, the commission could net a maximum of $8.5 million."

Richard van Stolk, one of the farm's owners who manages the property, said the family "had a suspicion" that the pasture held secrets.

"We never developed it, so the potential was always there," he said. "We never let anyone out there with metal detectors because we wanted to do it properly. Now it has and we couldn't be happier."