'The Partridge Family' through the years: See the cast then and now

If you're still harboring a crush on the late David Cassidy, don't be ashamed -- it's truly hard to believe that it's been more than 40 years since "The Partridge Family" went off the air.

The fictional family stole America's heart in the early 1970s, and breakout star Cassidy is still known as one of TV's all-time biggest heartthrobs. But similarly beloved were his fellow cast members, including his real-life stepmother, Shirley Jones.

Jones has actively tried to maintain a close relationship with her on-screen kids, despite some pretty major difficulties. She's openly discussed challenges with Cassidy, who struggled with alcohol abuse over the years, saying he refused to communicate with the family.

60 PHOTOS
The Partridge Family: Then and Now
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The Partridge Family: Then and Now
'The Partridge Family' premiered in 1970, instantly becoming one of the defining TV shows of the decade.
Shirley Jones in 1972.
Shirley Jones in the 1980s.
Shirley Jones in 1990. (Check out that '90s sweater!)
Shirley Jones in 2001.
Shirley Jones in 2006.
Shirley Jones in 2016.
David Cassidy in the 'Partridge Family' pilot episode in 1970.
David Cassidy in 1976 -- by now a bonafide heartthrob.
David Cassidy in 1975.
David Cassidy in 1982. He cleaned up his hair but still had that boyish charm!
David Cassidy in 1987.
David Cassidy in 1990.
David Cassidy in 1999.
David Cassidy at the TV Land Awards in 2003.
David Cassidy and Shirley Jones during The TV Land Awards -- in 2003.
David Cassidy and his daughter, Katie Cassidy.
David Cassidy in 2010.
David Cassidy in 2016.
David Cassidy tears up during his final touring concert in 2017.
David Cassidy during his final touring concert in 2017.
Danny Bonaduce in 1970.
Danny Bonaduce in 1970.
Danny Bonaduce in the pilot episode of 'Partridge' in 1970.
Danny Bonaduce in 1977.
Danny Bonaduce in 1982.
Danny Bonaduce in the 1980s.
Danny Bonaduce and David Cassidy in the 1990s.
Danny Bonaduce in the 1990s.
Danny Bonaduce and his young daughter.
Danny Bonaduce in 2004.
Danny Bonaduce in 2004.
Danny Bonaduce in 2010.
Danny Bonaduce competes in ABC's new 'Battle of the Network Stars' in 2017.
Susan Dey in 1970.
David Cassidy and Susan Dey in 1970.
Susan Dey in 1972.
 Susan Dey, David Cassidy, Danny Bonaduce, and Shirley Jones in 1972.
Susan Dey and her husband, Leonard Hirshan, in the 1980s.
Susan Dey as Grace Van Owen on L.A. Law in the 1980s.
 Susan Dey in 1985.
Susan Dey and David Cassidy in the late 1980s.
Susan Dey in 1990.
Susan Dey & Lisa Rinna in the mid-2000s.
Susan Dey and Rebecca Romijn in 2007.
Suzanne Crough and TV dad Dave Madden in 1970.
Suzanne Crough in 1973.
A Partridge reunion special in 1977.
Suzanne Crough in 1977.
Brian Forster, Shirley Jones and Suzanne Crough in 2003.
Suzanne Crough in 2014.
David Cassidy, Danny Bonaduce, Brian Forster and Suzanne Crough in recent years.
Dave Madden in 1970.
Dave Madden in 1978.
Dave Madden (left) in 1986. He passed away in 2014 at the age of 82.
Brian Forster in 1972.
Brian Forster, David Cassidy and Suzanne Crough in the early 1970s.
Brian Forster in 1973.
Brian Forster in recent years.
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Cassidy, for his part, tried to clean up his lifestyle. He continued performing for his dedicated fans until this year, when he revealed his battle with dementia. He passed away in November 2017.

And while his relationship with Jones suffered, Cassidy remained close to "Partridge" brother Danny Bonaduce. Their friendship survived all of the drama and difficulties that can come from the transition from child star to famous adult.

Jones was crushed when Suzanne Crough passed away in 2015 at age 52, saying at the time, "I still remember her as my young daughter on 'The Partridge Family.' She was the baby of the show. It's a rude awakening that we are all mortal. How fleeting life is."

The cast also suffered a loss in 2014 when family patriarch Dave Madden died in 2014.

RELATED: See the "Brady Bunch" cast through the years

48 PHOTOS
'Brady Bunch' kids then and now
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'Brady Bunch' kids then and now
All the Brady kids in 1969, the very first season of the show. Clockwise top left: Maureen McCormick, Susan Olsen, Eve Plumb, Mike Lookinland, Christopher Knight and Barry Williams.
The Brady girls in 1969.
Susan Olsen as Cindy Brady, Eve Plumb as Jan Brady and Maureen McCormick as Marcia Brady in a 1972 episode.
Maureen McCormick in 1972, the height of "The Brady Bunch" popularity. She was 16 in this photo.
Maureen and Mike circa 1978, after "The Brady Bunch" was off the air.
Mauren McCormick in 1981.
Maureen McCormick in the 1990s.
Maureen McCormick and husband Michael Cummings in 1998.
Maureen McCormick in 2005.
Mauren McCormick in September 2017.
Barry Williams in a 1972 episode. He was 18 in this photo.

Christopher Knight, Maureen McCormick and Barry Williams attending the 1972 premiere of The Who's rock opera "Tommy."

Barry Williams in 2014.
Barry Williams in October 2017.
Mike Lookinland and Barry William with Eve Plumb in an early "Brady" episode.
Eve Plumb as Jan in a 1971 episode.
Eve Plumb poses for a photo in 1972, when she was 14.
Eve Plumb in 1980.
Eve Plumb in 1988.
Eve Plumb in 2009.
Eve Plumb in 2015.
Eve Plumb in July 2017.
Christopher Knight in a 1972 episode. He was 15 in this photo.
Most of the original cast reunited for "The Brady Bunch Variety Hour," which launched after the original series wrapped. Missing was Eve Plumb, who didn't want to commit to the contract. She was replaced by Geri Reischl, who fans quickly dubbed "Fake Jan."
Christopher Knight in1987 at the Los Angeles Tennis Club.
Christopher Knight in 2010.
Christopher Knight in 2012.
Florence Henderson and Christopher Knight in 2014.
Christopher Knight and Florence Henderson in 2016.
Christopher Knight in May 2017.
Robbie Rist was introduced in the final season of "The Brady Bunch" as Cousin Oliver. Producers hoped that adding a child would restore some of the youthfulness of the earlier seasons.
Robbie Rist recording for Disney Channel in recent years.
Robbie Rist in 2015.
Mike Lookinland as Bobby Brady and Susan Olsen as Cindy Brady in 1971.
Susan Olsen as Cindy Brady in 1973. She famously no longer wanted to wear pigtails on the show as she got older but was met with resistance from producers.
Susan and Maureen in the 1980s.
Florence Henderson and Susan Olsen in the 1990s.
Florence and Susan in 2016.
Susan Olsen and Barry Williams in 2008.
Susan Olsen in 2009.
Maureen McCormick and Susan Olsen in the mid 2000s.
Mike Lookinland in 1971.
Christopher Knight and Mike Lookinland in 1972.
Ann B. Davis, Robert Reed, Florence Henderson, Christopher Daniel Barnes, Maureen McCormick, Christopher Knight and Mike Lookinland in 1989.
Mike Lookinland, Susan Olsen, Kelly Ripa, Barry Williams, Christopher Knight, Florence Henderson and Maureen McCormick in 2007.
Mike Lookinland in 2007 during the 5th Annual TV Land Awards.
Barry Williams, Christopher Knight, Mike Lookinland and Susan Olsen in May 2017.
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