It's probably impossible to fully disentangle "Medievalists in the late 1960's and early 1970's America" from "People who read and loved Tolkien in late 1960's and early 1970's America".
I've been reminded that I should attend SCA events again. It's been too long.
I figured out what the refrain from the Mumford and Sons song "Little Lion Man" reminds me of: "Sister Christian" by Night Ranger, from 1983. No kidding.
Took me two days to pull that bastard out of long term memory.