An empirical analysis of Google's default image results for a search on "david wertheimer"
1—me, circa 2002
2—other people named David Wertheimer (at the Bill & Melinda Gates Foundation and USC, respectively)
3—images in blog posts I've written on aiaio
4—my son and his cousins
A full look at Google Images brings up numerous croppings of the other Davids as well as my wedding photo and various inanimate objects.