1921: Lanin’s Roseland Orchestra recorded “Just Like a Rainbow” in NYC. It appeared on Gennett 4732, Starr-Gennett 9136, and Connorized 3037.
1922: Ladd’s Black Aces recorded “Lonesome Mama Blues” in NYC. It appeared on Gennett 4886 and Starr-Gennett 9258. The recording featured Phil Napoleon (c), Miff Mole (tb), Jimmy Lytell (cl), Frank Signorelli (p), and Jack Roth (d).
1922: Homer Rodeheaver recorded “Safe in the Arms of Jesus” in Richmond. It appeared on Rainbow 1001 and featured Homer Rodeheaver (tb & v) and Bob Matthews (p).
1924: Tom Morrison’s Irish Orchestra recorded “Tenpenny Bit” in NYC. It appeared on Gennett 5477 and featured Morrison (f) and Miss McGoldrick (p).
1925: The Tremaine Brothers recorded “My Mother’s Humming Lullaby” in NYC. It appeared on Gennett 3071.
1930: The Wellington Trio recorded “Hallelujah All the Way” in Richmond. It appeared on Champion 16078 (~1,300 copies sold) and Supertone 9728 and featured Frank Welling (v & sg), Thelma Welling (v), and John McGhee (v & g).
1936: Dick Robertson and his Orchestra recorded “A Waltz Was Born in Vienna” in NYC. It appeared on Champion 40117 and Decca 3707 and featured Robertson (v).
Gennett Records Discography 
Re 1930 entry: that should be The Welling (not Wellington) Trio