(btw, Dylan's even having heard of HH in 1962 was, I think, pretty good for a 21 year-old Minnesotan).

I agree with this, big Tim, and the reason was probably because Seeger was singing Hamish's Freedom Come All-ye and Ding Dong Dollar from the eponymous LP, which he produced for Folkways. As writers we were told not to put our names against our songs and they would be under the banner of (from) Thurso (to) Berwick, which would include all of Scotland. Pete knew Hamish had written the FCA and would have given him credits.