A fast-moving fire destroyed the Chevy Chase home of prominent society matron Tuesday. Meanwhile, the charitable ball the owner of the house, Mary-Stewart Montague Price has hosted for decades, will go on this Friday. Mary-Stewart Montague Price, affectionately known as "Studie," founded The National Debutante Cotillion and at 86 years old, remains its co-chair. Now, amidst blackened family portraits, are the charred remains of a rich family history. "This is where i grew up," said Buddy Price, the owner's brother. "This is where i went to the Naval Academy from; this is where I came back to the Marine Corps...