Lightfoot did not come out in the US until '66 due to mishandling by UA. UA's thinking was,don't release any LP'ss in America until he has a following there.
The thing of it is,forthe few places Gordon did play in the US,he "did" have a following. In factby the time he left UA in 1969/70,he discovered he had a loyal American following for nearly 5 years!

They just did almost nothing to bolster his sales here.
So,justifiably angry,he signed with WB/Reprise (re-prees). He offered $500,000 for the rights to his UA output but they said no. (He's gotten them back since).
That's why when IYCRMM broke into the top 10 here,UA & K-Tel hopped on the wagon of his popularity and released "Classic Lightfoot" (and many a variation of it over the years.)