[RedKey]

Originally Posted by Meltyred

This might be a little late but could the 川 refer to a grid that can be found in a atlas?
Instead of being a table, family tree etc.

Spoiler for 川 on the Epitaph:

No, the "river" part is more conceptual than graphical (though some may disagree on this). The kanji 川 does not have particular meaning regarding its structure.