Got a page reference for "Our Singing Country"? Nothing under this title, and nothing matches in the index of first lines. I paged through the sections "White Dance Tunes" and "Negro Game Songs" but don't find this piece.

You already know that the song is published in Seeger's 1960 banjo book with no attribution (or any notes other than re: tuning and recommended banjo lick) and in her 1964 collection on Oak with no song-specific info in the headnotes and tagged as "Source forgotten, learned in childhood" in the song list at the end of the book. Per the song list, this is on her Folk-Lyric LP, but I don't have it.