 The city is served by the Rosenberg Library , successor to the Galveston Mercantile Library , which was founded in 1871 . It is the oldest public library in the State of Texas . The library also serves as headquarters of the Galveston County Library System , and its librarian also functions as the Galveston County Librarian . 
 The city is served by the Rosenberg Library , successor to the Galveston Mercantile Library , which was founded in 1871 . It <a href='drop_aux' title='1'><mark>is</mark></a>the oldest public library in the State of Texas . The library also <a href='uninflect' title='2'><mark>serves</mark></a> as headquarters of the Galveston County Library System , and its librarian also functions as the Galveston County Librarian . 
Da city is served by the Rosenberg Library , successor to tdaGalveston Mercantile Library , which was founded in 1871 . It the oldest public library in thdatate of Texas . The library also serve as headquarters of thedalveston County Library System , and its librarian also functions as the Galveston County Librarian .