In the late 1950's Robert Nettune's picture was taken on a fluke, when indeed Mr. Nettune's Aunt did not have the time to partake in such 'silliness'....A few years later, I think it was Mr. Nettune's great aunt or possibly his grand mother was looking at the advertisements for Gerber baby products and noticed the familiar face.
Dr. Nettune is a practicing ophthalmologist in Athens and the picture that you see today on Gerber baby products is that of Bob Nettune.
I stand by my claim although I may have erred in stating he was the original.