Sons Of The Pioneers - Power In The Blood [1937]. 

PIC SHOWS... Left to Right.
Hugh Farr [fiddle/vcls], Tim Spencer* [tenor vocals],
Bob Nolan [baritone vocals/bass],
Len Slye [Roy Rogers from 28 October 1937] - [gt/vcls]
Lloyd Perryman** [tenor vocals/bass],
Pat Brady***[vocals/bass/comedy],
Hugh Farr [bass vocals/fiddle]
Tim's Last Session 22 February 1937 -
Resumed 27 March 1941
** Lloyd's 1st. Session 21 October 1937
*** Pat's 1st. Session 14 December 1937
[1889 - Written by Lewis E. Jones]
1st. Recorded 1928 by Frank Welling and John McGhee
Master - Unissued - released on CD Box Set [2009]
Alternate Issued on Melotone 8 - 04 - 60
Also Recorded 1947 and 1951 [radio show]
Recorded 21 October 1937 -
poss. Radio Recorders, 932 North Western Ave., Hollywood , CA-
Bob Nolan [vcl], Lloyd Perryman [vcl/bass],
Leonard Slye aka Roy Rogers [vcl solo/gt],
Karl Farr [gt], Hugh Farr [vcl refrain/fiddle].
Honors and awards
1971 Western Heritage Wrangler Award from the National Cowboy Hall of Fame
1976 Gene Autry Award
1976 Hollywood Walk of Fame Award
1977 Smithsonian Institution's "National Treasure" Designation
1978 Pioneer Award from Academy of Country Music
1980 Country Music Hall of Fame as the Original Sons of the Pioneers
[Roy Rogers, Bob Nolan, Tim Spencer,
Hugh Farr, Karl Farr, Lloyd Perryman]
1984 New Brunswick Country Music Hall of Fame Award
1986 Grammy Award for "Cool Water"
1988 Texas Western Swing Hall of Fame
1994 Western Music Association Hall of Fame Award
2002 Grammy Award for "Tumbling Tumbleweeds"
2003 Golden Boot Award by Motion Picture and Television Fund