NEW YORK -- Roger Angell, a famed baseball writer and reigning man of letters who during an unfaltering 70-plus years helped define The New Yorker's urbane wit and style through his essays, humor pieces and editing, has died. He was 101.

Angell died Friday of heart failure, according to The New Yorker.

Heir to and upholder of The New Yorker's earliest days, Angell was the son of founding fiction editor Katharine White and stepson of longtime staff writer E.B. White. He was first published in the magazine in his 20s, during World War II, and was still contributing in his 90s, an improbably trim and youthful man who enjoyed tennis and vodka martinis and regarded his life as "sheltered by privilege and engrossing work, and shot through with good luck."

Angell well lived up to the standards of his famous family. He was a past winner of the BBWAA Career Excellence Award, formerly the J. G. Taylor Spink Award, for meritorious contributions to baseball writing, an honor previously given to Red Smith, Ring Lardner and Damon Runyon among others. He was the first winner of the prize who was not a member of the organization that votes for it, the Baseball Writers' Association of America.

His editing alone was a lifetime achievement. Starting in the 1950s, when he inherited his mother's job (and office), writers he worked with included John Updike, Ann Beattie, Donald Barthelme and Bobbie Ann Mason, some of whom endured numerous rejections before entering the special club of New Yorker authors. Angell himself acknowledged, unhappily, that even his work didn't always make the cut.

"Unlike his colleagues, he is intensely competitive," Brendan Gill wrote of Angell in "Here at the New Yorker," a 1975 memoir. "Any challenge, mental or physical, exhilarates him."

Angell's New Yorker writings were compiled in several baseball books and in such publications as "The Stone Arbor and Other Stories" and "A Day in the Life of Roger Angell," a collection of his humor pieces. He also edited "Nothing But You: Love Stories From The New Yorker" and for years wrote an annual Christmas poem for the magazine. At age 93, he completed one of his most highly praised essays, the deeply personal "This Old Man," winner of a National Magazine Award.

"I've endured a few knocks but missed worse," he wrote. "The pains and insults are bearable. My conversation may be full of holes and pauses, but I've learned to dispatch a private Apache scout ahead into the next sentence, the one coming up, to see if there are any vacant names or verbs in the landscape up there. If he sends back a warning, I'll pause meaningfully, duh, until something else comes to mind."

Angell was married three times, most recently to Margaret Moorman. He had three children.

Angell was born in New York in 1920 to Katharine and Ernest Angell, an attorney who became head of the American Civil Liberties Union. The New Yorker was founded five years later, with Katharine Angell as fiction editor and a young wit named Andy White (as E.B. White was known to his friends) contributing humor pieces.

His parents were gifted and strong, apparently too strong.

"What a marriage that must have been," Roger Angell wrote in "Let Me Finish," a book of essays published in 2006, "stuffed with sex and brilliance and psychic murder, and imparting a lasting unease."

By 1929, his mother had married the gentler White and Angell would remember weekend visits to the apartment of his mother and her new husband, a place "full of laughing, chain-smoking young writers and artists from The New Yorker."

In high school, he was so absorbed in literature and the literary life that for Christmas one year he asked for a book of A.E Housman's poems, a top hat and a bottle of sherry. Stationed in Hawaii during World War II, Angell edited an Air Force magazine, and by 1944 had his first byline in The New Yorker.

There were no signs, at least open ones, of family rivalry. White encouraged his stepson to write for the magazine and even recommended him to The New Yorker's founder, Harold Ross, explaining that Angell "lacks practical experience but he has the goods." Angell, meanwhile, wrote lovingly of his stepfather. In a 2005 New Yorker essay, he noted that they were close for almost 60 years and recalled that "the sense of home and informal attachment" he got from White's writings was "even more powerful than it was for his other readers."

Not everyone was charmed by Angell or by the White-Angell family connection at The New Yorker. Former staff writer Renata Adler alleged that Angell "established an overt, superficially jocular state of war with the rest of the magazine." Grumbling about nepotism was not uncommon, and Tom Wolfe mocked his "cachet" at a magazine where his mother and stepfather were charter members. "It all locks, assured, into place," Wolfe wrote.

Unlike White, known for the children's classics "Charlotte's Web" and "Stuart Little," Angell never wrote a major novel. But he did enjoy a loyal following through his humor writing and his baseball essays, which placed him in the pantheon with both professional sports journalists and with Updike, James Thurber and other moonlighting literary writers. Like Updike, he didn't alter his prose style for baseball, but demonstrated how well the game was suited for a life of the mind.

"Baseball is not life itself, although the resemblance keeps coming up," Angell wrote in "La Vida," a 1987 essay. "It's probably a good idea to keep the two sorted out, but old fans, if they're anything like me, can't help noticing how cunningly our game replicates a larger schedule, with its beguiling April optimism; the cheerful roughhouse of June; the grinding, serious, unending (surely) business of midsummer; the September settling of accounts ... and then the abrupt running-down of autumn, when we wish for -- almost demand -- a prolonged and glittering final adventure just before the curtain."

Angell began covering baseball in the early 1960s, when The New Yorker was seeking to expand its readership. Even as drugs and labor-management battles shared and even stole headlines, he thought the real story remained on the playing field. Angell, who wrote acclaimed profiles of Hall of Famer Bob Gibson and the fallen Pittsburgh Pirates star Steve Blass among others, never had official credentials as a sportswriter; he was just a fan, a former high school pitcher who once aspired to the big leagues.