It appears as a song in Ruth Crawford Seeger's "Animal Folk Songs for Children," and is sung by Neill and Calum MacColl on the (extended) Seeger family recordings of the same name. Ruth Seeger credited Jacob A. Evanson in "American Folksong and the Total Culture," published by the Music Publishers Journal, July-Aug., Sept.-Oct. 1944. She's got it marked as originating in Pennsylvania.

The words differ slightly from Jean's version, and I can't say it's particularly bluegrassy, it is just a short little ditty:

F C F C The snake baked a hoecake,

F Bb C and set a frog to watch it.

F C F C The frog fell a-dozing,

F Bb C and the lizard came and took it.

F C F C7 Bring back my hoecake, you long-tailed nanny-o.

~ Becky in Tucson