Issue #4 - Boss Jock Gary Mack graces the cover of the Boss 30. This is the first of eight surveys he would appear on from 1965-67.
KHJ Boss 30 - July 28, 1965
KHJ Boss Radio Print Ad
This is a print ad for the May 9, 1965 edition of the Los Angeles Times and features the seven original Boss Jocks.
Gary Mack 1965 KHJ Sales Sheet
This is a one-sheet for Boss Jock Gary Mack from the 1965 KHJ Sales Folder. The text reads:
GARY MACK ...
Out of the Box
Into the Sunshine
Out of K-BOX, that is, where he established just about the only No. 1 rating that the Dallas station ever achieved over its tough competition. A product of Chicago, Gary has learned his business in some of the nation’s most competitive markets, ranging from Miami to Hollywood.
Now pacesetter of the noon till 3 quadrille on Boss Radio, Gary brings into his daytime segment all the zing he has picked up during his years as DJ and Program Director. And, most importantly, he uses the bumps and bruises from his own school of hard knocks to expertly sell his commercial time.
If you want to get into those daytime households, Gary is your man ... ‘cause that’s where he’s being heard.
Boss Jock Gary Mack Postcard
This is a promotional postcard for Gary Mack. The back of the postcard reads:
KHJ “Boss Jock” Gary Mack
Could be through the disguise of radio that a bad cat could come out sounding like the greatest. But when the real thing comes along there isn’t any mistaking a really warm person. And nice guys finish first ... Gary Mack proves that every minute he’s on the air!
Gary Mack With A Christmas Wish
Gary Mack holds a jumbo-sized Christmas Wish card from the Bobby Fuller Fan Club outside the KHJ studios on Melrose Ave.
KHJ Boss Cartoons - Vol. 1, No. 5
This is page one of the fifth issue of Boss Cartoons. This issue centers around Boss Jock Gary Mack and the Gary Mack Fan Club.
Click on the image below to see the entire cartoon. The panels have been combined to provide a continuous cartoon rather than have four separate pages.
Gary Mack Fan Club Membership Card
This is a membership card for the Gary Mack Fan Club. One became a member by sending a peanut butter sandwich to Gary on February 25, 1966.
KHJ Boss 30 - April 6, 1966
Issue #40 - “Soul and Inspiration” by the Righteous Brothers regains the No. 1 spot this week. It is one of only two songs to hit the No. 1 position after losing it in the Top 40 era of KHJ. “Dreams” by Fleetwood Mac (1977) was the other song to accomplish the feat.
The Last Train To Clarksville
These are a few photos taken on “The Last Train To Clarksville.” It was a round-trip train excursion for hundreds of KHJ fans from Los Angeles to Del Mar (officially renamed Clarksville for the event). The Monkees arrived via helicopter in Del Mar and rode the train back to Los Angeles and performed live in one of the train cars. The event took place on September 11, 1966, one day prior to their TV premiere on NBC on September 12.
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Top Right: Boss Jock Gary Mack makes a taped report from the beach at Del Mar.
Bottom: (L-R) Boss Jocks Gary Mack, Johnny Williams, Johnny Mitchell, and Frank Terry in one of the train cars.
KHJ Boss 30 - December 7, 1966
Issue #75 - Gary Mack on the cover of the Boss 30 as KHJ begins the second annual “Christmas Wish” promotion.
“I’m A Believer” by the Monkees hits number one on the Boss 30 in only its second week on the survey. The only other record to accomplish this feat during the Boss Radio era was “All You Need Is Love” by the Beatles.
Boss Jock Gary Mack Portrait
This is a portrait of Gary Mack from the “Boss Jocks” promotional package.
KHJ Boss 30 - March 15, 1967
Issue #89 - Original Boss Jock Gary Mack makes his final appearance on the cover of the Boss 30. He went from behind-the-mike to behind-the-scenes as a National Program Director for Drake-Chenault.
Gary Mack passed away on April 14, 2026 at the age of 90.




























