A ceremony will be held 1 p.m. Saturday to dedicate the Hattie Gaines Wilson Youth Services Department at the Central Library. Wilson was an advocate for expanding library services to black residents in Marietta and Cobb County. She served for 33 years as branch manager of the library in the Fort Hill community, which was closed in January. Information: cobbcounty.org/library or 770-528-2324.