I have searched ling and hard, using the internet, Google maps, and a new friend fromTokyo, who was writing a study of Zoroastrianism in Japan.
In an old photograph of Grandfather's grave, is a clear image of an impressive Zoroastrian monument, with the name fairly clearly visible. A Google search on this name led me to my Japanese friend, who told me how to find it. He also took some pictures for me, but non of them showed Grandfathers grave.
However, using his information, My nephew, an instrumentation engineer, dealing with seismometers, there are many earthquakes in Japan, was able to find the Zoroastrian monument, and using the old photograph, took some pictures from as near to the same angle as he could.
It was immediately clear that there had been a large change in ground level with respect to the monument, a rise of about 600mm.
This must have happened in the Great Kanto Earthquake of 1923. There must have been a ground liquifaction incident, causing a mud flow, and this must have submerged Grandfather's grave, leaving a level surface, giving the impression of a vacant plot. Another monument now stands where Grandfather's monument lays buried.
Now I need help.
I would dearly love to contact the family of the the person beneath the new monument; Firstly for the respect they gave to the cross, which they found, digging the new grave, and Secondly to to explain that there need be no guilt for what has been done in innocence.
Grandfather had a special relationship with the Japanese he mixed with in his work, helping to bring Japan into the 20th century at the closing of the Meiji era. As an ex sailor, he would have been enchanted to have an associate, to share his last voyage into the unknown.
If you look at this blog spot, you can find some relevant pictures:
"Looking for the Ikezumi Family"