Here’s something that may be of interest. It appears that all the presidents listed and linked to on this site take you to the current White House.
Apparently it was put together by Jim Britton, from the UNC School of Information and Library Science.
http://www.ibiblio.org/lia/president/pressites/PresidentS-list2.html#11to20
“Apparently it was put together by Jim Britton, from the UNC School of Information and Library Science.”
Shirley it must have been hacked.