Most of these are available in LP form on Ebay. No one mentioned Burl Ives' Down To The Sea In Ships. I grew up on it and still love his "Golden Vanity" best.

Guest,AR282 (a refugee robot from a Spielberg movie?),
Welcome and when will you join us as a member? Uncle Jacque must have told you about the Shanty Sings held every few months in Portland? See you there?
Mary