1890 Pach Bros Football Photo Help! 15" x 11"
 

I pride myself in being able to figure out the what, when and where about collectibles. I am stumped on this one and to me it should be (and probably is)
really simple. Pach Brothers stuff is really well known. Well, I am asking for help on this one. I am probably going to be embarrased when someone posts and maybe its the simple stuff that usually gets me?:o I have ideas but I am unable to connect any dots?

Signature on the back that I would like other opinions on too?

Large Format Cabinet Photo. 15" x 11"

Thank you,
Shawn

I'm stumped!
 

Maybe a Prep School or Athletic Association. The Rugby cap has me totally stumped... I doubt it's Canadien..Definitely not Bowdoin College... Still a cool image. Let me know if you are entertaining offers..