Geovisualization is a set of tools and techniques which allow users to analyze geospatial data through the use of interactive visualization. While such visualization helps users uncover information and insights otherwise undiscoverable, geovisualization focuses on knowledge discovery by combining layers of information over geographic and locational components. It has great potential for libraries and museums to use in historic and genealogy research. Many libraries have documents and records that contain addresses or traces of geographic information, but lack the means of presenting that information in a visually usable form. This workshop will provide participants with hands-on experiences in extracting geographic information from text, creating GeoJSon files to represent the geographic features, and visualizing the information via Google Maps using Google Maps JavaScript API.