KING Broadcasting owned KYA AM and FM. KSFO was owned by Gene Autry
Autry sold KSFO to King, which sold KYA AM to Bonneville, which owned KOIT-FM. KYA became KOIT-AM.
King sold KSFO years later to First.
In a thread a year or so back, Jerry Gordon made me aware that Autry sold KSFO, KVI and KEX because his first wife, Ina, had it in her will that those stations (somehow, KMPC in Los Angeles was exempt) were to be sold and her community property share donated to the Autry Foundation within five years of her death. Gene sold KTLA television, used the proceeds to buy out his partners in Golden West Broadcasting, sold San Francisco, Seattle and Portland and followed Ina's wishes.
After that was finished, Gene made a half-hearted attempt to rebuild GWB, buying an FM for KMPC (the old KUTE, Glendale) and WCAR, Detroit, but Golden West was never able to regain its luster.