Besides Col. Franklin, I spy:
1. Someone - possiby a waiter - with his back turned to the window of the Flood mansion
2. In the farthest driver side rear window, the reflection of a man smoking a cigarette
3. On the left headlight, the reflection of what looks like a woman, possibly waving
[That's the happy hatted car owner; the fixture's curvature is acting like a fisheye lens. -tterrace]
4. On the left front bumper, the reflection of what may be a policeman, who is possibly present to make sure neither Col. Franklin nor the photographer, nor the smoker, nor the lady, or run over by a careless motorist.
[I think you mean fender, not bumper, but I don't see a person. -tterrace]
I do not think we see a reflection of the photographer, but I am willing to be corrected.
I learned from Google that Franklin developed aircarft engines, including those that powered helicopters.

Not familiar with this model/make car, I cannot se how the radiator could be deemed to be fake.

[Franklins had air-cooled engines and did not need functioning radiators. - tterrace]

So named after Charles Lindbergh, who accepted a Franklin car as an honor after his flight; being a thrifty Midwesterner, he drove it until around 1940.