Nekojita san,
Thank you so much for showing me this info. It is very interesting. Though I can not fluently understand Japanese, the context of the article is clear enough i can understand what is being talked about. It would have been interesting to see these old kana, namely, ゐ, ゑ, くゎ, ぐゎ still in use in modern Japanese. Although I do remember seeing ゐ, ゑ and を actually being used in words and names in Japanese newspapers from right after the earthquake that struck Kobe in 1995. Actually, from what I saw, the above were being used quite frequently in personal names and even saw a few archaic spellings as well ie: してゐたり and すゑ. Interestingly, ゐ and ゑ along with their katakana equivalents, ヰ and ヱ do appear in some modern (post 1945) kana charts. Even though these archaic kana and spelling are rarely used, it is good if people can know of their existence along with the you ons くゎ and ぐゎ.