Mr. De Benedetti was a native of Oakland and grew up in San Mateo. He served as a flight officer in the U.S. Army Air Corps during World War II. He married Barbara Jean Kunz of Houston and in 1955, the couple moved to Woodside. Mr. De Benedetti's career was in real estate development.
As a member of the Mounted Patrol of San Mateo County, Mr. De Benedetti enjoyed trail-riding events. He was also a member of the San Mateo Elks Club and Horseman's Association. Among his other interests: playing tennis and riding a bike.
For a time, he was a director for the Woodside Fire Protection District.
Mr. De Benedetti is survived by his wife, Gaye; his sister, Joan Hunt; his sons Tom and Rick; his daughters Linda Boelsems and Cynthia; two stepchildren; 10 grandchildren; and four great-grandchildren.
The family is asking that, in lieu of flowers, donations be made to RedWhiteandCure.org or a charity of choice.