Not Walt compare the eyelids (space between brow and eye) is much bigger on Walt.

I would say not Bell as wrong period of clothes given age of man in Kendall's photo. Besides Bell's forehead much longer and hair curlier / frizzier.

Man in Kendall's photo is dressed in Victorian gentleman clothing as shirt collar, silk waistcoat (see pattern) and pocket watch chain indicate. Took me some time to source that coat but I found this which might explain it Victorian frock coat? The way the front of subject's coat is not bunching up as he sits, I suspect it is short in front.

Men of a certain class tended to dress in weekday (business) best for photos. And if they deigned to have photo taken then they could afford to be dressed in the fashion of the day and usually did.

Just my take.