Nelson Doubleday was a prominent figure in the world of baseball, serving as the co-owner of the New York Mets for over a decade. He was born in New York City in 1933 and grew up in a wealthy family. After attending Yale University, he worked in publishing and eventually became the chairman of Doubleday & Company, a publishing company founded by his grandfather.

In 1980, Doubleday purchased a 50% stake in the New York Mets, along with Fred Wilpon. The two men became co-owners of the team, and Doubleday served as the team's chairman until 2002. During his tenure, the Mets experienced both highs and lows. In 1986, the team won the World Series, thanks in part to the heroics of players like Keith Hernandez, Darryl Strawberry, and Dwight Gooden. However, the team struggled in the years that followed, and Doubleday and Wilpon were criticized for their management of the team.

Despite these criticisms, Doubleday remained a beloved figure among Mets fans. He was known for his passion for the game and his willingness to invest in the team. He was also a philanthropist, supporting a number of charitable causes throughout his life.

In addition to his work with the Mets, Doubleday was also involved in other aspects of the baseball world. He served on the board of directors for Major League Baseball and was a member of the Baseball Hall of Fame's board of directors. He was also a co-owner of the Montreal Expos for a brief period in the 1990s.

Doubleday passed away in 2015 at the age of 81. His legacy in the world of baseball lives on, however, and he is remembered as a passionate and dedicated owner who helped bring a World Series championship to New York.