MENDHAM -- Rick Pressl burst into the board of trustees meeting, a boyish exuberance overcoming his normally reserved temperament. The retired fire chief pulled aside Tanya Sulikowski, the executive director of the Schiff Natural Lands Trust, to show off a rusty, barely recognizable object. It was a Revolutionary War era stirrup, Pressl said, his first major find while excavating the nature preserve. He would soon have much more to show the board. Photo by Hilary Klimek/For the Star-LedgerRick Pressl, a retired fire chief, and students from Ridge High School have unearthed Revolutionary War era memorabilia in Mendham, including a set...