http://www.rssboard.org/rss-specification 720 XTF Search Results (docsPerPage=100;f277-subject=Frederick (Md.) -- History) https://catalog.wrhs.org/collections/search?docsPerPage%3D100;f277-subject%3DFrederick%20(Md.)%20--%20History Results for your query: docsPerPage=100;f277-subject=Frederick (Md.) -- History Thu, 01 Jan 1970 12:00:00 GMT Frederick in song and story. Apple, Joseph Henry. https://catalog.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc https://catalog.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc Thu, 01 Jan 1970 12:00:00 GMT Souvenir of historic Frederick. https://catalog.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc https://catalog.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc Thu, 01 Jan 1970 12:00:00 GMT