Jon Voss will discuss Civil War Data 150 (“CWD150″), a collaborative project of the Archives of Michigan, the Internet Archive, and Freebase. CWD150 seeks to link Civil War archives and data from separate state and national sources in an open community-maintained database (Freebase), and create interactive web applications to help crowdsource the data linking. The project presents research questions of particular interest to archivists regarding the use of strong identifiers and shared ontologies, as well as uses for shared metadata in the context of the Semantic Web.