Honus and his buddies...

[bobbvc]

Let's start with the logical agreements.
1- The two photos are from the same trip.
2- The guy in back #4 from left is the same person as #4 from left in both photos.
Everyone on board so far?

Here are some facts.
Clarke was referred to by his players generally and especially by Wagner as "Cap". Enclosed here is a scan from page 45 of The Devaleria's biography of Wagner. There are many other sources as well. If Wagner referred to Clarke as Cap it's logical to assume Ed Abbaticchio sitting two chairs away did as well.

The other scan is the back of the second photo.
The writing is in Ed Abbaticchio's hand.
He identifies himself and his companions as:

EJA (Abbaticchio), Miller, Wagner, Cap, And what appears to say Rivers.

Clarke was known as "Cap" to his players. He is clearly identified as such in the second photo. #4 is the same person in both photos. Therefore, hence and even ergo- #4 in photo 1 is Clarke.

Now someone find out who Rivers is.