when i googled it i got "gary cooper died at the age of 60 from prostate cancer"
i found it on three diffrent websites.... so i am pretty sure he died of prostate cancer.
hope this helped!,
-garycooperfan forever.
Gary Sperling died in 24 April 2003 of lung cancer.
Gary Hanekamp died on July 30, 1992, in Santa Paula, California, USA of cancer.
Breast cancer.
What kind of cancer did actor Bob Tessier die from in 1990 ?
Some kind of Cancer.
Gary Cooper died of Cancer May 13, 1961.
Gary Moore died on February 6, 2011 at the age of 58.
Gary Olsen had stage 4 colon cancer. He passed away in 2000 after a ten month battle.
Gary Sperling died in 24 April 2003 of lung cancer.
It is thought that he died from cancer, but that could not be confirmed.
Lester Cooper died on June 6, 1985, in Manhattan, New York, USA of cancer.
May 6,1873 he died by cancer
Gary Shusett died on August 9, 2013, in Hollywood California, USA of Cancer.
John Gary died either directly or through complications related to Prostate Cancer
Gary Papa died on June 19, 2009, in Philadelphia, Pennsylvania, USA of prostate cancer.
Gary Usher died on May 25, 1990, in Los Angeles, California, USA of cancer.
Gary Pickford Hopkins died on June 23, 2013, in Wales, UK of cancer.