http://www.rssboard.org/rss-specification 720 XTF Search Results (docsPerPage=100;expand=subject;f1-format=Book;f2-subject=Migration, Internal -- United States -- History -- 19th century;f3-subject=Immigrants -- United States -- History -- 19th century) http://catalog.wrhs.org/collections/search?docsPerPage%3D100;expand%3Dsubject;f1-format%3DBook;f2-subject%3DMigration,%20Internal%20--%20United%20States%20--%20History%20--%2019th%20century;f3-subject%3DImmigrants%20--%20United%20States%20--%20History%20--%2019th%20century Results for your query: docsPerPage=100;expand=subject;f1-format=Book;f2-subject=Migration, Internal -- United States -- History -- 19th century;f3-subject=Immigrants -- United States -- History -- 19th century Thu, 01 Jan 1970 12:00:00 GMT A migration study of the thirty-two States and four organized territories comprising the United States in 1850, based upon the Federal census of 1850. Myers, Eleanor., United States Census Office. 7th census, 1850. http://catalog.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc http://catalog.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc Thu, 01 Jan 1970 12:00:00 GMT