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The story
In 1922, the League trademarked the twin pines symbol used to represent North American cooperatives. "The pine tree is an ancient symbol of endurance and immortality. The two pines represent mutual cooperation—people helping people."
In its first few decades, it focused on consumer cooperation, and published a monthly magazine, "Co-operation".
After Warbasse, later presidents included: Murray B. Lincoln, former U.S. Congressman Jerry Voorhis, Stanley Dreyer, Glenn Anderson, Morgan Williams, Bob Scherer, Russell C. Notar, Paul Hazen, and Michael Beall.
The organization changed its name to NCBA in 1985.
In 2000 the group lobbied the Internet Corporation for Assigned Names and Numbers to establish a new top-level domain exclusively for cooperative organizations. The domain,.coop, became active in 2002.
In November 2015, after the resignation of Michael Beall, Judy Ziewacz became interim CEO until she was appointed by the board of directors as president and CEO effective February 1, 2016. Ziewacz was the first woman to hold the office of president and CEO in NCBA CLUSA's 100 years of service. She was succeeded two years later by Doug O'Brien.
From Wikipedia’s article on National Cooperative Business Association, shared under CC BY-SA 4.0.4