I've collected here the links from the various pages on this website, and a few more just for general information.
The Ultimate Guide: House Cats at the Discovery Channel
Larry Niven, the Science Fiction author, and his creations
Robert Heinlein, the Science Fiction author
T.S. Elliot's poem, The Song of the Jellicles
Some links on Tuxedo Cats
Mimi and Molly at twotuxcats.com
You can find Niven in the Tuxedo Cat Gallery
at twotuxcats.com, in gallery 10.
Tuxedo Cat Ring
Oreo's Tuxedo Cat Site
Hank the stupid cat
Boots the cute black and white tuxedo kitty
The secret cabal
Kodi and Schnapps
And many thanks to the Google search engine. Give it a try!