Signed on in 1928 as KGIO  on 1320  

Sometime prior to June, 1930 call letters were changed to KID 

Another source indicates KID went on the air February 16, 1929.  (This may be the date the call was changed to KID.   Speculation on my part -- Rockwell Smith)

1941 changed to 1350

(unknown date) changed frrequency to 590