Sorry to be-labor this discussion, however......
Susquehanna, PA is a little town (pop. 1700) that is located in the very Northeast corner of Pennsylvania.
While Pittsburgh is 300+ miles Southwest of Susquehanna. I would say these Page's dairy's are unrelated.
Also, I appreciate the trivia regarding Patti Page (one of my favorites when I was a kid); however, I don't
see the connection....

you must of been joking
If we can agree that these Page's Milk Co. cards are simply 1947 Bond Bread cards subsequently stamped....
then, I compare them as being very similar to the E94 cards whose backs were subsequently stamped with
the various George Close products......
Pennsylvania Ted