Thanks for your nice comments. The A-1 group is probably from Philadelphia, maybe New Jersey, I have a random photo of them somewhere but no info. The listening post record is definitely New Orleans. Also, the listening post record is '78 and the A-1 record is early 70s so they're probably also unrelated.
in my experience the listening post record is harder to find, i've only seen it a few times and recently got a beat up copy on ebay.