His underwater microphones recorded “Songs of the Humpback Whale,” inspiring a movement that led to national and international bans on commercial whaling.

In two decades of leadership at the publishing house, he helped remold a clubby book industry into a diversified and highly profitable corporate enterprise.

Challenging the theories of John Maynard Keynes, he questioned the idea that government intervention could help steer the economy.

For 25 years he was editor of The Concord Monitor, an award-winning go-to source every four years for national reporters covering the New Hampshire presidential...

A former milkman, he combined attentive customer service, low prices, quality goods and gimmicks, like singing cows, into a retailing phenomenon.

The legally blind son of a janitor, he wrote a program that allowed people to buy and sell stocks on their home computers and co-founded...

The legally blind son of a janitor, he wrote a program that allowed people to buy and sell stocks on their home computers and co-founded...

In a career that began in 1960, the Puerto Rico-born Mr. Vega became, one admirer said, “the architect of Hispanic radio at a global level.”

He built a California fast-food chain, opened a McDonald’s museum and restored a historic town on Route 66, a road for which he harbored a...

In 1973, she was the first woman hired by The New York Times to be a full-time staff photographer.