Just a note with copyright, they most likely do not own the records as they are subject to "fair use" (federal records, etc). They can only own the record if they modify it somehow, that it when it is subjected to copyright. For instance, grab a Wiki Commons map image is free, but the moment it is modified to include details ... it is owned by whoever modifies the map (think of it like art).
This is why most sites provide links to their site, which generates traffic (and essentially $ for them if they have advertisements on their website.)
But, their rules are their rules. My advice would be to alter your citation to include the original place where the citation is found, excluding that specific website. This is perfectly acceptable as this document could be found by many other methods/websites.