Fans of America's most famous family will revel in these previously unseen photographs - including one of a young, shirtless JFK.

The John F. Kennedy Presidential Library and Museum has completed an 18-month project, resulting in more than 1,700 vintage family pictures being made available online.

In what's being called an "expansive and quintessentially Kennedy photo album," other photo gems include an image of a young Teddy Kennedy in the playground and Kennedy matriarch Rose kitted out in her Sunday best.

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In this photo above, John (right), Robert (second from right), and Patricia (front left) pose with friends in Palm Beach, Florida, in 1936.

A somewhat blurry photo of Kathleen Kennedy kissing Ireland's Blarney Stone in 1937 is also included in the new uploads to the JFK Library.

The project involved compiling and cataloging the extensive collection of negatives and carefully storing them in subfreezing temperatures to slow their chemical decomposition. 

‘‘It’s just fun to see where the camera took them,’’ Nicola Mantzaris, a digital archivist involved in the effort said.

‘‘If you think about your own family photos and in what disarray they are in and just the volume — there’s definitely a universal aspect to this,’’ she added.

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The digitization effort, nicknamed the 'Nitrate Negative Project' ,was started last year to coincide with celebrations marking the 100th anniversary of JFK’s birth.

Members of the Kennedy family at their Hyannis Port compound, circa 1948

Members of the Kennedy family at their Hyannis Port compound, circa 1948

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