Perrow is not clear on where he got the text from; his label says: "From North Carolina; mountain whites; MS. written for E. N. Caldwell; 1913". E. C. Perrow (1915) Songs and Rhymes from the South. The Journal of American Folklore, Vol. 28, No. 108 (Apr. - Jun., 1915), pp. 129-190. Available on JSTOR (pay site), and currently posted online at [4].
See [3], as well as Sharp and Karpeles (1916) identifying Memory Shelton as daughter of Mrs. Noah Shelton.
books.google.com
"The Little Mohee" can be perused in Richard Chase (2014) American Folk Tales and Songs. Courier Corporation. Extract online at Google Books: [5].
Loraine Wyman and Howard Brockway (1916) Lonesome tunes: Folk songs from the Kentucky mountains. New York: H. W. Gray. The tune varies slightly from what is familiar today. The song may be viewed at Google Books: [7].