Sarah Boyer, 21, a 2015 Hilliard Davidson High School graduate, signs her name on a commemorative panel April 7 at the Hilliard branch of the Columbus Metropolitan Library, 4772 Cemetery Road. Her 18-year-old sister, Grace, a 2017 Davidson graduate, took a photo for posterity. "I've been coming here since I was a kid," said Sarah, whose mother told her about the opportunity to sign the panel. The panel full of signatures will be installed at the new $15 million Hilliard branch at 4500 Hickory Chase Way before it opens this summer. The 63,000-square-foot branch will be the second-largest facility in the library system behind the Main Library in downtown Columbus.