Harpgirl,
The song you seek is in the DT, type in [thanksgiving eve] and there you are. I suppose the Mudcat is like a song, you can get so caught up in the singing and playing and the wonderful harmonies that you just plain forget the words. I suspect you were so caught up in giving thanks that you didn't check the DT. If you had remembered I am sure you would have mentioned you are thankful as I am for this wonderful forum and huge collection of folk music.
Roger in Baltimore