Les Amis Creoles doesn't appear to be out of print.

http://www.arhoolie.com/cajun-and-zydeco/les-amis-creole-les-amis-creole.html

Sound like you have Ambrose Thibodeaux's first album, Authentic French Acadian Music, ~1963. The yellow album is his second one, More Authentic Acadian French Music, LL-119, ~late 1960s. The La Louisianne Records Web site still sells these lps.

You're right. For some reason I was thinking of the recording with the Poullards, and Garnier.