Yesteryear's Tree, by Nankichi Niimi. English translation and accompanying artwork by the lovely Tongari. A tiny and bittersweet tale, translated perfectly.
As a note, the original Japanese version is available at Aozora Bunko (青空文庫, or, "The Open-Air Library"), a Japanese digital library created "to provide broadly available, free access to Japanese literary works whose copyrights had expired." Do check out Nankichi's other works if you have the time; they are invariably lovely.