Your album cover description does sound like the one Jim Dixon mentioned.

Most of the material on it has been reissued in the Alan Lomax collection Southern Journey. Vol. 4, Brethren, We Meet Again : Southern White Spirituals. The version by Ruby Vass of "The Old Gospel Ship" is solo with guitar. You can hear a 30 sec. cut at Amazon & probably other internet record stores.

The Lomax material from his 1959 "Southern Journey" has been issued & reissued on LP's and CD's in so many combinations & series that it's almost impossible to track the particular song you want.

Are you sure you've got the right LP for the song you've described?