At Hope Cemetery in Barre, Vt., a five-ton granite bench sits on a triangle of grass.... “ Over 50 million deaths worldwide ” is chiseled on the back. Installed two years ago, the bench was underwritten by Brian Zecchinelli and his wife, Karen, to mark the 100th anniversary of the Wayside, a restaurant they own in nearby Montpelier.... It opened in 1918, just a few months before influenza scythed through Barre, killing nearly 200 people, the largest loss of life of any town in the state. One o