You may post a name. The things I want to avoid are posting emails, addresses or phone numbers of persons without their consent.
Recently a member of Brigham Young University's staff posted an article to Japan-101 on
Japanese Rice Trade Policy. While the subject is unrelated, you will find enough information in that article page to visit their Japanese studies dept website and maybe find someone willing to look into your inquiry.
Though not a scholar of Japanese history, I can tell you that Yuki is not a family name. It actually means "snow". As you go about your search keep in mind it is not likely you will find decendents who carry that name.