That "Pepsi maybe" bottle is a "Nehi" soda, with a mostly-obliterated ACL (applied color label).
Seems like much of the stuff you're finding is 50s-60s, but if you bring a real shovel and dig several feet down you may hit layers that are considerably older. I've dug well over 10 feet down to reach the layers I wanted, and others here have dug far deeper than that. Good luck and thanks for sharing!
edit: that "favorite" is an ink bottle, if you didn't know. Back in 4th grade I dug up some of those and was fascinated by them, so I understand the appeal. []
Plumbata, thanks! I was even't thinking Nehi. I researched the inkwell; it was invented and patented by Owen Rabb. It's such a cool looking little jar!