"Another 'Inventor of Radio'", by L.J. Horten in Broadcasting and Broadcast Advertising, January 1, 1937, pg. 32.
[NOTE: The entire text of a radio broadcast made by Horton is quoted within the text of this article, and this is what is referenced here.]
"Induction, Electric", from the World Book Encyclopedia, Vol. 9, 1961, pg. 178.
"Let's hear it for Bernard Stubblefield!", by Edward C. Lambert in TV Guide, October 10, 1970, pg. 18-20.
"Nathan B. Stubblefield and His Wireless Telephone", by Thomas W. Hoffer in the Journal of Broadcasting, Vol. XV, No.3, Summer 1971, pg. 317-329.
"Neglected Genius", by Frank Edwards in his book Stranger Than Science, 1959 Lyle Stuart, Inc., pgs. 9-11.
[NOTE: I’ve found that most of the stories that Edwards presents in Stranger Than Science are originally from accounts in FATE Magazine, for which he wrote several articles and was apparently a regular reader. So, it seems likely there is an account of Stubblefield's wireless somewhere within the pages of FATE, which I will check on.]
"Radio Broadcast", by Joseph Nathan Kane in his book Famous First Facts, 1933, pg. 423.
"Radio, History", from the World Book Encyclopedia, Vol. 15, 1961, pg. 87.
"A Technological Survey of Broadcasting’s ‘Pre-History,’ 1876-1920", by Elliot N. Sivowitch in the Journal of Broadcasting, Vol. XV, No.1, Winter 1970-1971, pg. 1-20.
Text from the Stubblefield monument on the campus of the Murray State College in Murray, Kentucky, placed in 1930. It reads thus:
HERE IN 1902
NATHAN B. STUBBLEFIELD
1860 - 1928
INVENTOR OF RADIO -- BROADCAST AND
RECEIVED THE HUMAN VOICE BY WIRELESS.
HE MADE EXPERIMENTS 10 YEARS EARLIER.
HIS HOME WAS 100 FEET WEST.