Joe or another editor, please correct a typo to the above: the source's name is Beulah Walton, not White.

Further details on the entry from the Brown collection: A journal entry (link) from a Beulah Earle Walton (1897-1983) of Durham NC reads as follows:

My first teaching job was in the mountains, or maybe foothills. It was at Mountain Park School, about ten miles from Elkin, not very far from Mt. Airy. ... I enjoyed our trips to the home of a bachelor who played the banjo and played such songs as “Susie licked the ladle; Dolly rocked the cradle, Goodbye my Susie Gal, I'm gone again.” One selection popular with students was “I’m riding a New River Train.”

. . . . . .

A YouTube video (click) appears to identify that "bachelor" as an 'Uncle' (Roy) Tinsley Griggs (link) and provides some nice two- and three-finger (non Scruggs) style banjo-picking, though sadly this song is not included. Tinsley was well-traveled: he was born in Moores Mill, Virginia (and had family in that state he periodically visited, per newspaper reports) in 1904, but ultimately moved to Ruby, South Carolina. He graduated from Wingate University in 1920 (link), then studied at the University of South Carolina* before attending the University of North Carolina's summer school. A 1926 article on the Mountain Park School/Institute accredits UNC as Griggs's school and specifies he was a history teacher (Winston-Salem Journal, June 6th, 1926, p. C7). He also spent time in a local band called The Drifters. He passed away in 1985 at the age of 81.

* Newspaper accounts report his attending USC; I was unable to find his name in the yearbooks.