Jock Mahoney Autographs
Jacques Joseph O'Mahoney (February 7, 1919 – December 14, 1989), known professionally as Jock Mahoney, was an American actor and stuntman. He starred in two action/adventure television series, The Range Rider and Yancy Derringer. He played Tarzan in two feature films and was associated in various capacities with several other Tarzan productions. He was credited variously as Jacques O'Mahoney, Jock O'Mahoney, Jack Mahoney, and finally Jock Mahoney.
Mahoney was born February 7, 1919, in Chicago, Illinois and reared in Davenport, Iowa. He was of French and Irish descent, the only child of Ruth and Charles O'Mahoney. He entered the University of Iowa in Iowa City and excelled at swimming and diving, but dropped out to enlist in the United States Marine Corps when World War II began. He served as a pilot and flight instructor.: 17
After his discharge from the Marine Corps, Mahoney moved to Los Angeles, and for a time was a horse breeder. However, he soon became a movie stuntman, doubling for Gregory Peck, John Wayne, and Errol Flynn. For the climactic fight scene in Flynn's 1948 film Adventures of Don Juan, "Errol wanted to make a leap from midway up the staircase to the floor below," recalled director Vincent Sherman in his memoir, "but we had trouble finding a double willing to try it. Frank Pattison, our unit manager, said there was only one man in Hollywood who could do it: Jock Mahoney." Mahoney demanded and received $1,000 for the dangerous stunt. "It was a spectacular leap," wrote Sherman. "I should have shot it in slow motion to show Mahoney sailing through the air, but I didn't, and every time I see the film I want to kick myself."
Read more about Jock Mahoney on Wikipedia
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Current items with a signature of Jock Mahoney
These are the most current items with a signature of Jock Mahoney that were listed on eBay and on other online stores - click here for more items.
Traded items with a signature of Jock Mahoney
The most expensive item with a signature of Jock Mahoney (JOCK MAHONEY Original AUTOGRAPH The LAND UNKNOWN 1-Sheet Dinosaur POSTER Signed) was sold in July 2012 for $149.99 while the cheapest item (COWBOY ACTOR JOCK MAHONEY SIGNED CARD & NICE PRINT) found a new owner for $5.24 in October 2009. The month with the most items sold (4) was April 2025 with an average selling price of $71.75 for an autographed item of Jock Mahoney. Sold items reached their highest average selling price in July 2012 with $149.99 and the month that saw the lowest prices with $5.24 was October 2009. In average, an autographed item from Jock Mahoney is worth $24.95.
Most recently, these items with a signature of Jock Mahoney were sold on eBay - click here for more items.
| Picture | Item Title | Price | Store |
 | JOCK MAHONEY (1919-1989) signed 8x10 photo | "Tarzan Goes to India" - autograph | $26.49 |  |
| JOCK MAHONEY (1919-1989) signed 8x10 photo | "Tarzan Goes to India" - autograph | $26.49 | |
| Jock Mahoney Hand Signed Jsa Coa 8x10 Photo Autographed Authentic | $73.95 | |
| Jock Mahoney Hand Signed Jsa Coa 8x10 Photo Autographed Authentic | $73.95 | |
 | Jock Mahoney JSA Coa Signed 1950`s Mint Complete Writing Tablet Autograph | $70.25 | |
| Jock Mahoney JSA Coa Signed 1950`s Mint Complete Writing Tablet Autograph | $70.25 | |
| Jock Mahoney JSA Coa Signed 1950`s Mint Complete Writing Tablet Autograph | $69.95 | |
| Jock Mahoney JSA Coa Signed 1950`s Mint Complete Writing Tablet Autograph | $69.95 | |
 | Jock Mahoney SIGNED Photo 50s Movie TV Actor Tarzan Range Rider Westerns Stunts | $44.00 | |
| Jock Mahoney SIGNED Photo 50s Movie TV Actor Tarzan Range Rider Westerns Stunts | $44.00 | |
| Jock Mahoney SIGNED Photo 50s Movie TV Actor Tarzan Range Rider Westerns Stunts | $44.00 | |
| Jock Mahoney SIGNED Photo 50s Movie TV Actor Tarzan Range Rider Westerns Stunts | $44.00 | |
| Jock Mahoney SIGNED Photo 50s Movie TV Actor Tarzan Yancy Derringer Land Unknown | $43.50 | |
| Jock Mahoney SIGNED Photo 50s Movie TV Actor Tarzan Yancy Derringer Land Unknown | $43.50 | |
| Rare Jock Mahoney Autographed Promo Photo - 8x10 - 1962 Tarzan / Flash Gordon | $19.99 | |
