Maryland Historical Trust Library CatalogFrom the web site, “The Maryland Historical Trust Library is the State’s principal repository for information relating to Maryland’s architectural, archeological, and cultural heritage. The following types of resources are available to researchers: books, journals, site-specific reports, historic maps, written and photographic documentation about Maryland’s architectural and archeological sites, oral histories which capture the State’s cultural traditions through written transcripts as well as audio and video recordings, historic structure reports, preservation plans, and architectural drawings.”