http://www.rssboard.org/rss-specification 720 XTF Search Results (docsPerPage=100;f4-subject=Railroad trains -- United States) https://catalog.wrhs.org/collections/search?docsPerPage%3D100;f4-subject%3DRailroad%20trains%20--%20United%20States Results for your query: docsPerPage=100;f4-subject=Railroad trains -- United States Thu, 01 Jan 1970 12:00:00 GMT Baltimore & Ohio passenger service, 1945-1971. Stegmaier, Harry. 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