N-P to auction off part of its Prom Grand March

NASHUA — Silken and shimmering gowns, elegant hairstyles and corsages. Sharp-creased tuxedos, cumber buns and bow ties. After the Nashua-Plainfield prom goers walk the path adorned to complement their glamor, stopping for photographs at a specially crafted pergola, the auction begins. To help fund future construction projects in the school’s   Tech Program, a cedar pergola…