The army thing made me think of this...
I stumbled upon a 2018 FB post by a gentleman who spent time in Boulder in the 70's music scene. He refers to Kennell's nickname as "Cosmo". He also shares a quote that GK said he "picked up the phrase from some group of vagabond Christians in London...". And, he mentions many living in a cabin just across the highway from the sprawling Fort Carson army base.
No, none of this sheds any light on Pam nor James, but I thought it might provide a little more fuel for research.