{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Heads of Families at the First Census of the United States Taken in the Year 1790 (Volume 3)","author_name":"United States. Bureau of the Census","thumbnail_url":"https://www.ebooknetworking.net/books/115/293/big1152936298.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1152936298.html\">Heads of Families at the First Census of the United States Taken in the Year 1790 (Volume 3)</a>","width":400,"height":300}