Sacred Harp

I'm in the process of adding the data for the current (1991) Denson edition of the Sacred Harp, and am just flabbergasted at the idea that DNAH didn't bring a copy of the 1844 original's contents with it. The 1860 revision is there, but not the 1844, which is where BEACH SPRING and a number of other major tunes first hit hard-copy status. How did this amazing lacuna manage to subsist this long? I don't have a copy of it, or I would post it myself.