David Cassidy's stand-in, on the show, was a girl.
David Cassidy parents are the late actor Jack Cassidy and the actress Evelyn Ward.
Jack Cassidy, of Irish and German descent, was witty, bisexual and suffered from bipolar disorder.
As David Cassidy's parents were frequently touring, David was mainly brought up by his maternal grandparents in New Jersey.
David's parents divorced, but David was not told.
Two years after the divorce, in 1956, a neighbour's children told David of the split.
In 1956, David's father married actress Shirley Jones, and three half-brothers were born: Shaun (1958), Patrick (1962) and Ryan (1966).
At the age of 24, David Cassidy decided to retire.
"His gall bladder had to be removed...
"He developed acne from the enormous stress and workload...
"A 14-year-old fan, Bernadette Whelan, had been killed by asphyxiation at one of the White City concerts.
(David Cassidy ruined my life Mail Online)
David Cassidy's first wife was actress Kay Lenz, whom he married in 1977 and divorced in 1982.
His second wife was South African sportswoman Meryl Tanz, whom he married in 1984. This marriage ended in 1985.
By 1986, David cassidy was broke. (David Cassidy ruined my life Mail Online)
Cassidy has two children: daughter Katie Cassidy, born November 25, 1986 to former model Sherry Benedon, and son Beau Devin Cassidy, born February 8, 1991, to Sue Shifrin.
Cassidy and Shifrin married on March 30, 1991.
In his 2007 autobiography COULD IT BE FOREVER? (David Cassidy In Print) David Cassidy wrote:
"I hired a bodyguard who lived in my room.
"We didn't want to let anyone know what was going on, so I simply had to bring this guy with me everywhere I went, as if he were an old friend of mine.
"He was a muscular fellow, the bodybuilder type, in his early 30s.
"And I was this rather slight, androgynous looking 21-year-old - my stand-in on The Partridge Family, if you can believe it, was a girl.
"Everyone at work was convinced we were lovers.
"It's that gay thing again.
"All through my career, there have been people who've assumed that I am homosexual.
"Thanks to The Partridge Family, I found I gained a pretty strong gay following, which I rather liked."
David Cassidy plays a TV character...
David Cassidy plays a kind of bisexual character in the ABC Family Channel show "Ruby & the Rockits."
(David's daughter Katie plays one of the bisexual characters on TV in "Melrose Place.")
Ruby and the Rockits is about two brothers, both former pop stars, who reunite when a long-lost daughter comes back into their lives.