Social historian, writer, artist.
Update: I am now in touch with the Avidon family and we have worked out the relation.
How were you able to get in touch? What tools did you use to find them?
Thanks!
I tried everything I could think of to research it, and then I finally resorted to Facebook and writing to dozens of people named Avidon in the US. It took over a year but someone finally responded with information and I went from there.