The same author wrote a short biography of General Grant. I managed to track it down after reading the Japanese wikipedi page for him.

American Flag Kimonos: http://archive.wul.waseda.ac.jp/kosho/bunko11/bunko11_a0470/...

"Grant kun" at dinner: http://archive.wul.waseda.ac.jp/kosho/bunko11/bunko11_a0470/...