CHICAGO -- Mandolin player and composer Chris Thile learned the hard way that when you get a call from the 312 area code this time of year, you should probably answer the phone.

Thile is among 23 recipients of this year's MacArthur Foundation "genius grants," which are given in a secrecy-shrouded process. Winners have no idea they've been nominated for the $500,000 awards until they get the call, and nominators must remain anonymous.

Thile ignored the incessant phone calls at first, thinking they were election-year robocalls. Then he received an ominous message: "Don't tell anyone about this call."

His tour manager searched for the number online and told him, "It appears to be from something called the MacArthur Foundation." It was a name Thile recognized.

"I think I must have turned white," he said. "I've never felt so internally warm. My heart was racing. All of a sudden, I felt very askew physically. I was trying to catch my breath. . . . I thought, 'Oh my God, did I win a MacArthur?' "

The grants, paid over five years, give recipients freedom to pursue a creative vision. Winners, who work in fields ranging from medicine and science to the arts and journalism, don't have to report how they spend the money.

Thile, a New Yorker who played with Nickel Creek and is now touring with Punch Brothers, said he may use the grant to fund a chamber music project for a bluegrass quintet.

Northwestern University historian Dylan C. Penningroth said he now can expand his search for court records of property owned by slaves in the pre-Civil War South.

"This grant will make it possible for me to think big, to be more ambitious about the time period I cover and the questions I'm trying to answer, like, what's the connection to the modern civil rights era?" Penningroth said.

For other winners -- there have been 873 so far, including this year's recipients -- the grants bring prestige, confirmation and, in some cases, moments of profound reflection about life and fate.

"It left me thinking about my childhood," said Dominican-American author Junot Diaz, who wrote the Pulitzer-winning novel "The Brief Wondrous Life of Oscar Wao."

"It would never have dawned on me to think such a thing was possible for me," Diaz said, reflecting on his early years in New Jersey, "struggling with poverty, struggling with English. . . . I came from a community that was about as hardworking as you can get and yet no one saw or recognized in any way our contributions or our genius. . . . I have to wonder, but for circumstances, how many other kids that I came up with are more worthy of this fellowship than me?"

Other New York City winners:

CLAIRE CHASE, 34, Brooklyn. Arts entrepreneur who engages audiences in the appreciation of contemporary classical music and opens new avenues of artistic expression through her International Contemporary Ensemble.

TERRY PLANK, 48. Geochemist at Columbia University who probes the usually invisible but remarkably powerful thermal and chemical forces deep below the Earth's crust that drive the motion of tectonic plate collisions.

LAURA POITRAS, 48. Documentary filmmaker revealing the consequences of military conflict abroad in documentaries that portray the lives and intimate experiences of families and communities largely inaccessible to the American media.

NewsdayTV's Doug Geed visits two wineries and a fish market, and then it's time for holiday cheer, with a visit to a bakery and poinsettia greenhouses. Credit: Randee Dadonna

Out East with Doug Geed: Wine harvests, a fish market, baked treats and poinsettias NewsdayTV's Doug Geed visits two wineries and a fish market, and then it's time for holiday cheer, with a visit to a bakery and poinsettia greenhouses.

NewsdayTV's Doug Geed visits two wineries and a fish market, and then it's time for holiday cheer, with a visit to a bakery and poinsettia greenhouses. Credit: Randee Dadonna

Out East with Doug Geed: Wine harvests, a fish market, baked treats and poinsettias NewsdayTV's Doug Geed visits two wineries and a fish market, and then it's time for holiday cheer, with a visit to a bakery and poinsettia greenhouses.

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