New answers tagged solitaire
Wikipedia has quite a collection, and the site you mention also has a page with further links. You might find more online if you also search for "patience", the more common name for "solitaire" outside North America.
Given the game limitations caused by Barry's variant, and the vast number of resources that can be found contradicting her, I would think that the common rule is to place Kings at the bottom of columns. You could do an exhaustive internet search for Baker's Dozen rules and never see the variant that Barry describes in her book. Other books, such as Hoyles, ...
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