"Who's the foreigner dressed like a Taisho era gentleman?" I thought. The answer came as something of a surprise.

Blow me down if it isn't Ryūnosuke Akutagawa.

It's unlike many of the usual images we have of the author, so the Asahi asked a facial recognistion expert for an opinion. He said the features match. https://www.asahi.com/articles/ASL1X7KKVL1XPLZU003.html

I came across that picture because it is part of the Edwin Dun archive. Here he is with sons James, John and Angus. John and Angus are in the photo with Akutagawa. https://research.piano.or.jp/series/baton/2020/06/jamesdun_1.html

Including the eldest, also named Edwin, Dun had four sons with Yama Takahira. (His first wife, Tsuru, had passed away).

Edwin Dun Sr.'s account of his years in Japan is available to read for free on the web. He played a major part in pioneering dairy farming in Hokkaido. https://archive.org/details/CAT10899295DunReminiscences/page/n53/mode/2up

Josh Dun of the band Twenty One Pilots is one of his descendants. He mentioned it on Instagram a few years ago. https://www.instagram.com/p/NcPa0Nocv-/ 

Edwin Dun was involved with a number of farming projects in Hokkaido. His work as a horse breeder led him to kill off local wolves attacking his herds. Unfortunately, the Hokkaido Wolf was a separate species, and is now extinct. https://en.wikipedia.org/wiki/Hokkaido_wolf

Dun tried sheep farming, before advising the Hokkaido Development Board that it was cheaper to buy wool from Australia. The snow in Hokkaido meant sheep had more limited access to pasture.

He was asked to try sugar beet farming. Again, he concluded yields were uneconomic. Hokkaido went ahead with the project anyway, and it failed, just as he had predicted. He later wrote: