From Samuel L. Bayard, "Hill Country Tunes" (1944), p. 75:

"Hog-Eye an' a 'Tater.

"Played by Irvin Yaugher Jr, Mt Independence, Pa., Oct. 19 ,1943. As played by his great-uncle. ...

"This is not the melody which accompanies the well known and often recorded sea shanty called 'Hog Eye' nor is it the play party song tune with a similar name known farther south (see Sharp-Karpeles, 'English Folk Songs from the Southern Appalachians,' II, No.250). A somewhat different version, with the parts in reverse order, is in Bayard Coll., No.288, from Greene County, where the title is simply 'Hog Eye,' and has an indecent meaning.

"In Fayette County, this tune has the following associated rhyme:

             I went down to Sally's house,
             'Bout ten o'clock or later;
             All she had to give to me
             Was a hog-eye and a 'tater.

"The rhyme accompanying the set known in Greene County is:

             As I was going down the street,
             A pretty little girl I chanced to meet;
             I stepped right up and kissed her sweet,
             And asked her for some hog-eye meat.

"No other sets of the tune are known to the editor."

That pretty much says it. Terry is vindicated.