In 2010 or 2011, I posted a photograph of Josef to his virtual memorial on the Find-a-Grave website. I used a slightly warped photograph with a low resolution.
Since I posted that photograph, it has migrated around the web, used freely (and without acknowledgement) by various bloggers.
It seems odd to search for Josef on Google and come across websites with this particular photograph. While the internet is a bit of a wild west, it is still nice when people acknowledge the source, even if it is Find-a-Grave.