Finally got a copy of the CMS 101 Back-Room Ballads
. Seller was correct, there indeed are no liner notes on the back.

A few other things worth noting:

- Song A4, identified on the album as The Fireship, is actually The Three Coachmen
- Song B4, Old King Cole, was also recorded by Brand on his album American Drinking Songs, but it is obviously a different recording since it doesn't have Erik Darling. The Drinking Songs version is much more lively and faster, and has a nice vocal harmony. The Back-Room Ballads version has different voices or indicators to make each rank obvious, but in the 1956 recording the lyrics are all sung the same. I can break down the lyrics later but after an initial listening, they sound the same.
- Song B2, Red Light Saloon, was also recorded on the Drinking Songs album, but this time the recordings are stylistically very similar. Same case with the lyrics, but again, I don't have the time at the moment to compare.
- Song A4, The Three Coachmen, is again also on the 1956 album. These two are similar again, but this time a bit more different.

Now, to the two differences Lighter was asking about. It is again a different recording because the 1955 recording has a vocal harmony to it while the 1949 recording does not. I can send you all my recordings if you'd like to compare, Jonathan. Or Thomas, if you'd like.