Blooper (1925, 1926)

[Bapopik at AOL.COM]

   The HDAS has 1937 for the baseball "blooper."  It has 1947 for an embarrassing mistake, in radio or television.
   Perhaps this will give me mention on William Safire next "Bloopies"--but probably not.


      TIGERS SCORE FOUR IN SEVENTH TO BEAT SENATORS IN OPENER, 4-1
       ROBERT RAY.       Los Angeles Times (1886-Current File).       Los Angeles, Calif.: Sep 2, 1925.                   p. B1 (2 pages):
Pg. 2:  _"BEEFING" PARTY_
   The Senators bunched around Ump Schmidt for a little "beefing" party, but nothing in the way of punches took place.  In fact, it was none other than Mr. Eckert, himself, who provided the next punch, a one-base "blooper" rap over the drawn-in Solon infield that brought both O'Shea and Whitney over the rubber and clinched the tilt.

      LAZERRE'S FORTY-THIRD HOMER TIES COAST MARK
       ROBERT RAY.       Los Angeles Times (1886-Current File).       Los Angeles, Calif.: Sep 12, 1925.                   p. 9 (2 pages):
Pg. 1:  Piercy hurled a magnificent game holding the Tigers to one hit, a blooper single by Jackie Warner in the sixth frame, for eight frames.

      WARFARE ON BLOOPERS IS NOW WAGED
              Los Angeles Times (1886-Current File).       Los Angeles, Calif.: Feb 14, 1926.                   p. B9 (1 page):
   Warfare against bloopers is declared!  With the terrific demonstration of blooping fresh in the minds of all listeners who attempted to receive foreign stations during the International Radio Week tests just concluded, the campaign announced by the Radio Digest should meet with instant success.
(...)  ...to reduce radiation or blooping to a minimum.

(All other cites until 1939 appear to be from sports.  I'll keep checking--ed.)