A note regarding the research from a couple of weeks ago. The Western Cowboy performance by Percy Ridge of Fort Worth, TX. I was curious and Googled Mr. Ridge. It appears that there are more recordings of him, in case someone decides to follow down that rabbit warren.

"Percy Ridge" of Fort Worth, Texas search results. In particular, http://www.keeponliving.at/year/1934.html. From the page header:

1934

. . .

music - the Glyndebourne festival is inaugurated - Arnold Schoenberg emigrates to the US - Dmitri Shostakovich: Lady Macbeth of the Mtsensk District - Django Reinhardt and Stéphane Grappelli founded the Quintette du Hot Club de France - Cole Porter: Anything Goes - Edward Elgar (†) - Gustav Holst (†) - Charley Patton

first released recordings by Bill "Jazz" Gillum, Jimmie Gordon, Joe Pullum, Sun Ra

musical instruments - the Hammond organ, electric organ, invented by Laurens Hammond, manufactured by the Hammond Organ Company

1934.04.09? - US: Texas: Huntsville (State Penintiary) - recordings for the Library of Congress - Jim Boyd, Percy Ridge

1934.04.10 -- US: Texas: Huntsville (State Penintiary) - recordings for the Library of Congress - Percy Ridge

Ad you can buy that one recording here.

SRS