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We hear a lot about the major generation categories—boomers, Gen X, millennials, Gen Z and the up-and-coming Gen Alpha. But there are folks who don't quite fit into those boxes. These in-betweeners, sometimes called "cuspers," are members of microgenerations that straddle two of the biggies.

"Xennial" is the nickname for those who fall on the cusp of Gen X and millennial, but there's also a lesser-known microgeneration that straddles Gen X and baby boomers. The folks born from 1954 to 1965 are known as Generation Jones, and they've been thrust into the spotlight as people try to figure out what generation to consider 59-year-old Vice President Kamala Harris.

Like President Obama before her, Harris is a Gen Joneser—not exactly a classic baby boomer but not quite Gen X. Born in October 1964, Harris falls just a few months shy of official Gen X territory. But what exactly differentiates Gen Jones from the boomers and Gen Xers that flank it?

"Generation Jones" was coined by writer, television producer and social commentator Jonathan Pontell to describe the decade of Americans who grew up in the '60s and '70s. As Pontell wrote of Gen Jonesers in Politico:

"We fill the space between Woodstock and Lollapalooza, between the Paris student riots and the anti-globalisation protests, and between Dylan going electric and Nirvana going unplugged. Jonesers have a unique identity separate from Boomers and GenXers. An avalanche of attitudinal and behavioural data corroborates this distinction."

Pontell describes Jonesers as "practical idealists" who were "forged in the fires of social upheaval while too young to play a part." They are the younger siblings of the boomer civil rights and anti-war activists who grew up witnessing and being moved by the passion of those movements but being met with a fatigued culture by the time they themselves came of age. Sometimes, they're described as the cool older siblings of Gen X. Unlike their older boomer counterparts, most Jonesers were not raised by WWII veteran fathers and were too young to be drafted into Vietnam, leaving them in between on military experience.

Gen Jones gets its name from the competitive "keeping up with the Joneses" spirit that spawned during their populous birth years, but also from the term "jonesin'," meaning an intense craving, that they coined—a drug reference but also a reflection of the yearning to make a difference that their "unrequited idealism" left them with. According to Pontell, their competitiveness and identity as a "generation aching to act" may make Jonesers particularly effective leaders:

"What makes us Jonesers also makes us uniquely positioned to bring about a new era in international affairs. Our practical idealism was created by witnessing the often unrealistic idealism of the 1960s. And we weren’t engaged in that era’s ideological battles; we were children playing with toys while boomers argued over issues. Our non-ideological pragmatism allows us to resolve intra-boomer skirmishes and to bridge that volatile Boomer-GenXer divide. We can lead."

Time will tell whether the United States will end up with another Generation Jones leader, but with President Biden withdrawing his candidacy, it has now become a distinct possibility.

Of note in discussions over Kamala Harris's generational status is the fact that generations aren't just calculated by birth year but by a person's cultural reality. Some have made the argument that Harris is culturally more Gen X than boomer, though there doesn't seem to be any record of her claiming any particular generation as her own. However, a swath of Gen Z has staked their own claim on her as "brat"—a term singer Charli XCX thrust into the political arena with a post on X that read "kamala IS brat." That may be nonsensical to most older folks, but for Gen Z, it's a glowing endorsement from one of the top Gen Z musicians of the moment.