“Who are these People?”

A square painting, of a Family in front of a Seaplane!
I received a Christmas Card and this was the image on the front, with a Seaplane,in the background so very good, I made the drawing, below, then the Painting. I did look back to find who they are, and the Man(to the right) is the President of the Academy of Sciences here in Golden Gate Park. His wife, and child, I presume!(You know Christmas Cards!)