Here are three different McCann's half gallons. The bottle on the left has a different slug plate to the other two, & the one on the right does not have the word REGISTERED on the reverse heel.
Keystone Dairy. Hard one to photograph. Embossing is a bit vague. Maybe it's been tumbled? There is a variation with the word REGISTERED under the slug plate
The USA bottles were definitely used for egg-nog at Christmas time. I don't collect ACL bottles so I haven't researched whether these were used into the ACL era. There are certainly USA ACL green milk bottles out there, but I don't know if these were used for egg-nog.
Haha. That one is the first I've seen in bright green. I bought it on Etsy - it's still in the post. Here are the two that I had already from the same vendor.